Qid Examcode Question Qimpath opt1 opt2 opt3 opt4 opt5 opt6 opt7 opt8 opt9 opt10 opt11 opt12 opt13 opt14 opt15 impath1 impath2 impath3 impath4 impath5 impath6 impath7 impath8 impath9 impath10 impath11 impath12 impath13 impath14 impath15 answers uanswer CR Edit Delete
227 1Z0-062 Examine these steps: Q227.png It throws an error as the QUERY parameter is not supported on an empty table. It throws an error as the table test_employees is empty and CONTENT=data_only is specified. It performs the export successfully. It throws an error as Data Pump cannot find a table called TEST.EMP. 3 SC edit delete
226 1Z0-062 One of your databases runs in ARCHIVELOG mode. Examine this command: Q226.PNG 1, 2, 3, 5 1, 6, 3, 4 1, 6, 3 1, 2, 3, 4, 5 3, 4 1 SC edit delete
225 1Z0-062 Which three are true about the default database buffer cache? (Choose three). Buffers containing block images may be selected for reuse based only on a Least Recently Used (LRU) algorithm. It is in the fixed area of the SGA. Its buffers can contain data block images for blocks that have a corresponding image in a data file. Buffers containing block images may be selected for reuse based only on a touch count algorithm. It can contain block images only for database blocks whose block size is equal to the buffer size. The keep and recycle cache memory is sub-allocated from memory allocated to the default buffer cache. Its buffers can contain data block images for blocks that have no corresponding image in a data file. 2,6,7 MC edit delete
224 1Z0-062 In which three situations can you use threshold server-generated alerts to help diagnose and fix problems? (Choose three). when free space in a locally managed tablespace falls below a specified percentage when the number of logons per second exceeds a specific value when a resumable statement is suspended when the total number of locked user account exceeds a specific value when the total number of logons exceeds a specific value when free space in a dictionary managed tablespace falls below a specified percentage 1,2,3 MC edit delete
223 1Z0-062 Which two utilities can NOT configure a new listener on port 1526? (Choose two.) dbca asmca netca netmgr lsnrctl 3,5 MC edit delete
222 1Z0-062 All of your database instances use SPFILES. You executed this command in one of them: ALTER SYSTEM SET MEMORY_MAX_TARGET=1024M; Which statement is true? The parameter is modified in memory and in the parameter file. The command returns an error. The parameter is modified in the parameter file only. The parameter is modified in memory only. 3 SC edit delete
221 1Z0-062 Examine these statements: Q221.jpg The ROLLBACK backs out all DMLS before after_delete. The ROLLBACK backs out all DMLS until after_delete. The ROLLBACK throws an error. The ROLLBACK executes successfully but does not back out any DMLS. 2 SC edit delete
220 1Z0-062 The HR schema exists in databases, BOSTON and DENVER, with the same password, HR. Q220.png Change the command to create a public database link in BOSTON. Change the command to create a public database link in DENVER. Execute the command as SYS in DENVER. Execute the command as SYS in BOSTON. Execute the command as HR in BOSTON and SYS in DENVER. Execute the command as SYS in both databases. 5 SC edit delete
219 1Z0-062 What should you do for a Scheduler to start a job when a file arrives on a remote system? Start an Oracle database instance on the remote system and register the Scheduler agent with this database. Install the Scheduler agent on the remote system and register the agent with the database on the local system. Ensure dedicated server is enabled on both the local and remote databases. Shutdown the file watcher on the local system. 1 SC edit delete
218 1Z0-062 In one of your databases, unified auditing is enabled and an SH.SALES table exists. You can successfully execute these commands: Q218.PNG Audit records are always stored in an external audit file. It is enabled for all users having SELECT privilege on SH.SALES. It is only enabled for SH. Only successful queries of SH.SALES are written to the audit trail. 4 SC edit delete
217 1Z0-062 A PFILE exists for your database. You want to increase the value of the PROCESSES parameter from 300 to 400 and make it persistent for your database instance. You plan to use the ALTER SYSTEM command. Which two methods can be used? (Choose two.) Edit PFILE manually, re-create the SPFILE from the edited PFILE, and restart the database instance by using the SPFILE. Create an SPFILE, start the database instance by using the SPFILE, and then execute the ALTER SYSTEM SET PROCESSES=400 SCOPE=SPFILE command. Create an SPFILE, start the database instance by using the SPFILE, and then execute the ALTER SYSTEM SET PROCESSES=400 SCOPE=DEFERRED command. Create an SPFILE, STARTUP MOUNT the database instance by using the SPFILE, and then execute the ALTER SYSTEM SET PROCESSES=400 command. Start the database instance by using the PFILE, and then execute the ALTER SYSTEM SET PROCESSES=400 SCOPE=BOTH command. Use the PFILE to STARTUP MOUNT the database instance, and then execute the ALTER SYSTEM SET PROCESSES=400 command. 3,6 MC edit delete
216 1Z0-062 DEFERRED_SEGMENT_CREATION is TRUE in one of your databases. You execute this command: Q216.PNG A database object is created. No database segment is created. The table and column definitions are stored in the data dictionary. No table definition is stored in the data dictionary. No column definitions are stored in the data dictionary. No object definition is stored in the data dictionary. 1,2,3 MC edit delete
215 1Z0-062 An employee salary in the non-partitioned EMPLOYEES table, has been updated but the transaction is uncommitted. Which two types of lock are held by the transaction? (Choose two.) a row level lock on the row being updated a null lock on the row being updated a row shared lock on the EMPLOYEES table an exclusive lock on the EMPLOYEES table a null lock on the EMPLOYEES table 1,3 MC edit delete
214 1Z0-062 Which three statements are true about a job chain? (Choose three.) The DBA role is required to create a job chain. It can be used to implement dependency-based scheduling. It cannot invoke the same program or nested chain in multiple steps in the chain. It cannot have more than one dependency. It can be executed using event-based schedules. It can be executed using time-based schedules. 2,5,6 MC edit delete
213 1Z0-062 A database is open READ WRITE and the instance has multiple sessions some of which have active transactions. Q213.png They may issue COMMIT or ROLLBACK statements They are suspended and unable to issue any statements They may continue to issue DML statements They are rolled back automatically They may continue to issue queries They are terminated immediately 2,4,6 MC edit delete
212 1Z0-062 Your database is in ARCHIVELOG mode. Q212.png 1, 2, 3, 4, 6 2, 5, 1, 6 4, 2, 5, 1, 6 .2, 3, 1, 6 2 SC edit delete
211 1Z0-062 Which three statements are true PFILEs, SPFILEs or both? (Choose three.) SPFILEs and PFILEs may both be edited with an O/S editing utility Some SPFILE parameters can be modified successfully with the SCOPE=MEMORY clause A SPFILE can be created by an idle instance A PFILE can be created by an idle instance All SPFILE parameters can be modified successfully with the SCOPE=BOTH clause All SPFILE parameters can be modified successfully with the SCOPE=MEMORY clause 2,4,5 MC edit delete
210 1Z0-062 Which four statements are true about database instance behavior? (Choose four.) An idle instance is created when a STARTUP NOMOUNT is successful All dynamic performance views (v$ views) return data when queried from a session connected to an instance in NOMOUNT state The consistency of redo logs and data files is checked when mounting the database Redo log files can be renamed in MOUNT state An SPFILE can be updated when connected to an idle instance Datafiles can be renamed in MOUNT state 3,4,5,6 MC edit delete
209 1Z0-062 Which two must be installed or configured either manually or by DBCA in order to use Enterprise Manager Database Express (EM Express)? (Choose two.) A port number for Oracle HTTP Server must be configured The APEX_PUBLIC_USER role must be granted to SYSMAN A SYSMAN user with SYSDBA privilege must be created At least one TCP/IP dispatcher must be configured The Oracle HTTP Server must be installed 2,4 MC edit delete
208 1Z0-062 DAILY_ORDS_LST is created in locally managed tablespace ORDERS_TBS which uses automatic segment space management. 80% of every data block in daily_ords_list is reserved for row inserts 20% of each data block in the table is reserved for row updates PCTFREE can help to minimize row chaining during inserts PCTFREE can help reduce row migration during updates PCTFREE eliminates row chaining during inserts 2,4 MC edit delete
207 1Z0-062 Which are two ways for a database service to be recognized by a listener in Oracle Database 12c? (Choose two.) Dynamic Registration by the LREG process Dynamic Registration by the SMON process Static registration in the listener.ora file using the GLOBAL_DBNAME parameter Dynamic Registration by the PMON process Static registration in the listener.ora file using the SERVICE_NAME parameter 1,5 MC edit delete
206 1Z0-062 Your database is configured in ARCHIVELOG mode. Examine the RMAN configuration parameters: q204.PNG It fails because the DELETE INPUT option can be used only with the BACKUP AS COPY command It creates image copies of the archivelogs It creates a backupset of archive log files It creates image copies of the database files It fails because the DELETE INPUT option can be used only with the BACKUP AS BACKUPSET command 2,5 MC edit delete
205 1Z0-062 One of your databases has archive logging enabled and RMAN backups are taken at regular intervals. The data file for the USERS tablespace is corrupt. Which command must you execute before starting the recovery of this tablespace? STARTUP FORCE ALTER TABLESPACE users OFFLINE IMMEDIATE; SWITCH DATAFILE ALL ALTER TABLESPACE users OFFLINE NORMAL; ALTER TABLESPACE users OFFLINE TEMPORARY; 5 SC edit delete
204 1Z0-062 One of your databases supports an OLTP workload. The default UNDO tablespace is fixed size with: 1. RETENTION NOGUARANTEE 2. UNDO_RETENTION is 12 minutes User SCOTT gets this error after a query on the SALES table has run for more than 15 minutes: ORA-01555: snapshot too old Which three factors taken separately or in some combination might be the cause? (Choose three.) An update was made to the SALES table after the query began An update to the SALES table was committed after the query began A committed delete to the SALES table was made more than 12 minutes before the query began An uncommitted update to the SALES table was made more than 12 minutes before the query began A committed update to the SALES table was made more than 12 minutes before the query began An uncommitted delete to the SALES table was made more than 12 minutes before the query began An update was made to the SALES table before the query began 1,4,5 MC edit delete
203 1Z0-062 QUESTION 203 Examine this command executed on a client that is remote from the database server. SQL> CONNECT hr/hr@orcl Which two are required for this command to connect the SQLPLUS client to a database instance? (Choose two.) An orcl TNS entry must be defined in the client-side and server-side tnsnames.ora files An orcl TNS entry must be defined in the client-side tnsnames.ora file A service name must be defined to the listener that matches the service name in the orcl TNS entry An orcl TNS entry must be defined in the server-side tnsnames.ora file The service name orcl must be defined to the listener 4,5 MC edit delete
202 1Z0-062 You install Oracle Grid Infrastructure standalone server and issue the following command: crsctl start has Which two existing components get automatically added to the Oracle Restart configuration? (Choose two.) Oracle CSSD services the database whose instance is running Oracle Notification services Oracle Healthcheck services Oracle Net Listener 1,3 MC edit delete
201 1Z0-062 Which two tools can be used to configure static service information in the listener.ora file? (Choose two.) Oracle Net Manager Oracle Enterprise Manager Cloud Control Oracle Net Configuration Assistant Listener Control Utility (LSNRCTL) Oracle Enterprise Manager Database Express 1,2 MC edit delete
200 1Z0-062 Which two tasks must you perform before you begin the upgrade process to Oracle Database 12c? (Choose two.) Put all readonly tablespaces in read write mode Recompile all invalid objects Set the compatible parameter to 12.1.0.1 Gather dictionary statistics Empty all user recycle bins 2,5 MC edit delete
199 1Z0-062 You executed the following query: Considering that all the redo logs are available, what information can you derive from the output of the preceding query? Q199.PNG The time when the last flashback operation in your database was performed The time when the first flashback operation in our database was performed The approximate time and the lowest system change number (SCN) to which you can flash back your database The system change number (SCN) and the time when the Flashback Database was enabled in the database instance 3 SC edit delete
198 1Z0-062 Because of a logical corruption in the EMPLOYES tables, you want to perform Tablespace Point-in-Time Recovery (TSPITR) to recover the table. Before you started the TSPITR process, you queried the TS_PITR_CHECK view and you realized that the table has a referential constraint with DEPARTMENTS that exists in another tablespace, MASTERTBS. Which two actions will permit the TSPITR to work? (Choose two.) Taking the MASTERTBS tablespace offline Dropping the relationship between the tables Adding the MASTERTBS tablespace to the recovery set Putting the MASTERTBS tablespace in read-only mode 2,3 MC edit delete
197 1Z0-062 Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to tape drive fast enough. What could be a solution to make streaming happen during the backup? Configure backup optimization Configure the channel to increase MAXOPENFILES Configure the channel to increase the capacity with the RATE parameter Configure the channel to adjust the tape buffer size with the BLKSIZE option 4 SC edit delete
196 1Z0-062 Examine the following ALTER command: SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command? It cancels all pending disk drops within the disk group It restores disks that are being dropped as the result of a DROP DISKGROUP operation. It mounts disks in the disk group for which the drop-disk operation has already been completed It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed It adds previously dropped disks back into the disk group 1 SC edit delete
195 1Z0-062 You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area? (Choose two.) backup pieces copies of all parameter files trace file generated using BACKUP CONTROLFILE TO TRACE control file autobackups 1,4 MC edit delete
194 1Z0-062 Which background process does Automatic Shared Memory Management use to coordinate the sizing of memory components? PMON SMON MMNL MMAN MMON 4 SC edit delete
193 1Z0-062 Which statement is true about the Database as a Service (DBaaS) instances and Database instances in Oracle Public Cloud? An Oracle database instance can support only one DBaaS instance. A DBaaS instance can support only one Oracle database instance. An Oracle database instance can support multiple DBaaS instances. A DBaaS instance can support multiple Oracle database instances. A DBaaS instance runs in a pluggable database (PDB), which is contained in a multi-tenant container database (CDB). 4 SC edit delete
192 1Z0-062 Your database is running in ARCHIVELOG mode. You want to take a consistent whole database backup. Which two statements are true in this scenario? (Choose two.) RMAN backups contain only data files. The database instance must be shut down to take a user-managed consistent backup. Consistent RMAN backups can be taken while the database is open. User-managed backups only contain formatted data blocks. The database must be in MOUNT state to take consistent RMAN backups. 3,4 MC edit delete
191 1Z0-062 Your database has archive logging enabled and RMAN backups are taken at regular intervals. A data file in the USERS tablespace is damaged. Which command must you execute before starting the recovery of this tablespace? ALTER TABLESPACE users OFFLINE STARTUP FORCE NOMOUNT STARTUP FORCE SWITCH DATAFILE ALL 1 SC edit delete
190 1Z0-062 Examine the details of the uncompressed, non-partitioned heap table CITIES. Q190.png Ensure free space that is approximately equal to the space used by the table should be available. Ensure there are no pending transactions on the table. Enable row movement is enabled. Disable all indexes on the table 3 SC edit delete
189 1Z0-062 Examine the command to perform a data pump export operation on a source database: Q189.png The expdp operation exports data that satisfies the condition of the defining query used to create the EMP_DEPT view. The impdp operation creates the view and dependent objects. All rows from the dependent objects, along with the metadata required to create the EMP_DEPT view, are exported. Objects dependent on the EMP_DEPT view are exported. The impdp operation creates EMP_DEPT as table and populates it with the data from the export dump file. 1,4,5 MC edit delete
188 1Z0-062 In your database, archive logging and control file autobackup are enabled. The data files and redo log files are intact but control files are impacted due to media failure. In which two recovery scenarios must you use the RESETLOGS option? (Choose two.) One control file copy is intact so the spfile is changed to refer to only one copy. One control file copy is intact and damaged control file copies have to be restored to the default location All copies of the control file are damaged and the CREATE CONTROLFILE statement is executed manually All copies of the control file are damaged and the auto backed up control file is used for recovery. One control file copy is intact and damaged control file copies have to be restored to a non-default location. 3,4 MC edit delete
187 1Z0-062 Which three statements are true about Oracle Data Pump? (Choose three.) Oracle Data Pump export and import operations can be performed to move data across different database releases. DBMS_DATAPUMP PL/SQL packages can be used independent of Data Pump clients. A directory object must exist and a user performing an EXPDP or IMPDP operation must have read and write permission on that directory object. Oracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege. Oracle Data Pump export operations invoked from the clients that are connected remotely by using a connection string, create Data Pump files on the client file system. 1,2,3 MC edit delete
186 1Z0-062 Which users are created and can be used for database and host management of your DBaaS database servers? opc and oracle users root, oracle and cloud users root and oracle users root, opc and oracle users cloud and oracle users 1 SC edit delete
185 1Z0-062 What is a requirement for creating a remote database scheduler job? The remote database job must run as a user that is valid on the target remote database. A private database link must be created from the originating database to the target remote database. The target remote database on which the job is scheduled must be Oracle Database 11g Release 2 or later The target remote database must be on a different host form the originating scheduler database host. 1 SC edit delete
184 1Z0-062 The schema SALES exists in two databases, ORCL1 and ORCL2, and has the same password, SALES123. User SALES has CREATE DATABASE LINK and CREATE SESSION privileges on both databases. Q184.PNG ORCL2 is created as a public database link to connect a single session to the SALES schema in the ORCL2 database. ORCL2 is created as a shared database link to connect multiple sessions to the SALES schema in the ORCL2 database ORCL2 is created as a private database link to connect to only the SALES schema in the ORCL2 database. ORCL2 database link creation fails. 3 SC edit delete
183 1Z0-062 You want to create a locally managed tablespace called NEWTBS to store segments with different extent sizes. Which set of tablespace attributes can be specified for a tablespace that satisfies the requirements? EXTENT MANAGEMENT LOCAL STORAGE (INITIAL 5M MAXSIZE 10M) REUSE AUTOEXTEND ON MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT UNIFORM EXTENT MANAGEMENT LOCAL AUTOALLOCATE 4 SC edit delete
182 1Z0-062 You configured the Fast Recovery Area (FRA) for your database. The database instance is in ARCHIVELOG mode. The default location for the archived redo log files is the FRA. Which two files are removed automatically if space is required in the FRA as per the retention policy? (Choose two.) Archived redo log files that have multiple copies in a different archive location user-managed backups of data files and control files RMAN backups that are obsolete flashback logs 3,4 MC edit delete
181 1Z0-062 Which two statements are true about initialization parameter files? (Choose two.) A lost or damaged SPFILE can be re-created by using the parameter values listed in the alert log. A PFILE must exist for an SPFILE to be created. The ALTER SYSTEM command cannot be used to change the value of any parameter if a database instance has started using a PFILE Both the SPFILE and PFILE must always reside on a file system accessible from the database host server. On startup, by default a database instance always first searches for an SPFILE, and if it does not find any, searches for a PFILE. 2,5 MC edit delete
180 1Z0-062 Which three statements are true about user account administration? (Choose three.) A user's current session is not affected when the user's profile is changed. Only users with the SYSDBA privilege can change the tablespace quota for other users. A new user account can be created only by SYS or SYSTEM users. A user's quota can be set for any permanent tablespace but not for the default temporary tablespace. A user requires only the CREATE SESSION privilege to change his or her own password. 1,4,5 MC edit delete
179 1Z0-062 What must you use to read data from a table in your database and write it to an external table? Use SQL* LOADER conventional path load. Use SQL* LOADER direct path load. Use CREATE TABLE..ORGANIZATION EXTERNAL command with ORACLE_LOADER access driver Use CREATE TABLE..ORGANIZATION EXTERNAL command with ORACLE_DATAPUMP access driver. 4 SC edit delete
178 1Z0-062 You create a locally managed tablespace ORDERS_TBS with automatic segment management. Q178.png It allows only 80% of space to be occupied in all data blocks of this table. It minimizes row chaining during row insertion It minimizes row migration during existing row data updation. It automatically coalesces free space of a data block when it reaches 20% of available space. 1 SC edit delete
177 1Z0-062 Your database is open in read/write mode and multiple users are connected to the database instance. You execute the following command: SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION; What would be the effect on current sessions? They are not terminated but may only issue queries. They are not affected. They are terminated immediately They are terminated after completing the transaction. 2 SC edit delete
176 1Z0-062 Examine the command: Q176.PNG The data file, TEST01.DBF, can be auto extended to a maximum size of 5M. The tablespace, TEST1, can contain a maximum of one data file. Allocated and free extents are tracked using bitmaps. Segment free space is tracked in the data dictionary. 3 SC edit delete
175 1Z0-062 An application repeatedly accesses small lookup tables, causing a lot of physical I/O operations. What do you recommend to minimize this? Configure the nonstandard buffer cache with a buffer size greater than the size of the default buffer cache Increase the size of the shared pool Configure the KEEP buffer cache and alter the tables to use the KEEP cache Configure the RECYCLE buffer cache and alter the tables to use the RECYCLE cache. 3 SC edit delete
174 1Z0-062 What action must you take to ensure complete database recovery till the point of failure? Multiplex the control files Duplex the RMAN backup sets. Multiplex the online redo log files. Configure the database to run in ARCHIVELOG mode. 4 SC edit delete
173 1Z0-062 When does a database checkpoint occur? When there is an online redo log switch. When a user session terminates abnormally When a server process terminates abnormally. When the SHUTDOWN ABORT command is issued. 1 SC edit delete
172 1Z0-062 Examine the command: SQL> ALTER SYSTEM SET ENABLE_DDL_LOGGING=TRUE; Which two statements are true in this scenario? (Choose two.) All data definition language (DDL) commands are logged in to the alert log file All DDL commands are logged in to a text file in Automatic Diagnostic Repository (ADR) home. A subset of executed DDL statements is written into an XML file in ADR home. A subset of executed DDL statements is written to the DDL log in ADR home. All DDL commands are logged in to a trace file in ADR home. 3,4 MC edit delete
171 1Z0-062 Which three statements are true about naming methods? (Choose three.) Local naming supports multiple protocols, but for any one connection, the client and server must use the same protocol In the Easy Connect method, clients can connect to a database server by using the host name of the database with an optional port and service name In the Easy Connect method, the listener port and IP address must be provided for the connection to be successful. The local naming method does not support connect-time failover and load-balancing options. The directory naming method supports connect-time failover and load-balancing options. 1,2,5 MC edit delete
170 1Z0-062 Identify the access that is initially available to connect to your Database as a Service (DBaaS) environment. Enterprise Manager on port 1158 telnet on port 23 Cloud Control on port 7799 SSH on port 22 SSL/TLS on port 443 4 SC edit delete
169 1Z0-062 What is a pre-requisite to alter a role? You should be granted the DBA role. You should set the OS_ROLES parameter to true. You should be granted the role with the GRANT OPTION You should have the ALTER ANY ROLE system privilege. 4 SC edit delete
168 1Z0-062 Examine the following steps: A DBA grants the CREATE TABLE system privilege with ADMIN OPTION to the user SIDNEY. SIDNEY grants the CREATE TABLE system privilege to the HR user. Which statement is true? SIDNEY can revoke the CREATE TABLE system privilege only from HR, to whom he granted it. HR can grant the CREATE TABLE system privilege to other users. Neither SIDNEY nor HR can create new tables if the DBA revokes the CREATE TABLE privilege from SIDNEY. HR still retains the CREATE TABLE system privilege if the DBA revokes the CREATE TABLE privilege from SIDNEY. 3 SC edit delete
167 1Z0-062 Which statement is true about the loss of a data file belonging to the default undo tablespace? The database remains open in read-only mode. The database is put in MOUNT state and requires recovery to be opened The database remains open for querying but no DML statements can be executed except by the users with SYSDBA privilege. All the noncommitted transactions are lost. The database instance aborts. 3 SC edit delete
166 1Z0-062 Examine the parameters: Q166.PNG Increase the maximum number of ITL slots for segments on which a blocking user performs a transaction. Decrease the SESSIONS_PER_USER limit in the profiles assigned to blocking users. Set a limit in the profiles of blocking users to control the number of data blocks that can be accessed in a session. Use Database Resource Manager to automatically kill the sessions that are idle and are blocking other sessions. Decrease the IDLE_TIME resource limit in the profiles assigned to blocking users. 2,4 MC edit delete
165 1Z0-062 Which three functions can be performed by the SQL Tuning Advisor? (Choose three.) recommending creation of indexes based on SQL workload recommending restructuring of SQL statements that have suboptimal plans checking schema objects for missing and state statistics recommending optimization of materialized views generating SQL profiles 2,3,5 MC edit delete
164 1Z0-062 Which three statements are true about server-generated alerts? (Choose three.) Server-generated alerts notify administrators of problems that cannot be resolved automatically. Alerts are not issued for locally managed read-only tablespaces. Response actions cannot be specified for server-generated alerts. Stateful alerts can be queried only from the DBA_ALERT_HISTORY view When an alert is cleared, it is moved to the DBA_ALERT_HISTORY view. 1,2,5 MC edit delete
163 1Z0-062 Which three statements are true about Automatic Workload Repository (AWR)? (Choose three.) An AWR snapshot shows the SQL statements that are producing the highest load on the system, based on criteria such as elapsed time and CPU time. AWR data is stored in memory and in a database. AWR tables belong to the SYSTEM schema D. The manageability monitor (MMON) process gathers statistics and creates an AWR snapshot that is used by the self-tuning components in a database. An AWR snapshot contains system-wide tracing and logging information. 1,2,4 MC edit delete
162 1Z0-062 Which statement is true about the Oracle central inventory directory (oraInventory)? oraInventory must not be shared by all Oracle software installations on a single system If ORACLE_BASE is set to /u01/app/oracle for the oracle user during an installation, OUI creates the Oracle Inventory directory in the /u01/app/oracle/ oraInventory path. lf an OFA-compliant path is not created and the ORACLE_BASE environment variable is not set during an Oracle Database installation, the Oracle Inventory directory is placed in the home directory of the user that is performing the installation. Oracle software owners must be members of the same central oraInventory group, but they need not have this group as their primary group. 4 SC edit delete
161 1Z0-062 Identify three uses of the CROSSCHECK command (Choose three.) to validate the database backup to synchronize logical backup records with physical files in backup storage to check the obsolete backups that can be deleted from the file system to update information about backups that are deleted, corrupted, or inaccessible in a recovery catalog or control file to update the recovery catalog or control file if archived log files are deleted with operating system commands 2,4,5 MC edit delete
160 1Z0-062 You determine that database performance is sub-optimal due to hard parsing statements. Automatic Shared Memory Management (ASMM) is disabled for your database instance. Which tool would you use to get advice on how to improve performance? Memory Advisor for the PGA SQL Access Advisor Memory Advisor for the shared pool SQL Tuning Advisor 3 SC edit delete
159 1Z0-062 You want to create a file watcher and an event-based job for detecting the arrival of files on the local server from various locations. To achieve this, you enable the raising of file arrival events from remote systems. Which two conditions must be satisfied to receive file arrival events from a remote system? (Choose two.) The remote system must have a running Oracle Database instance and a scheduler agent installed. The initialization parameter REMOTE_OS_AUTHENT must be set to TRUE on your database. The local database must be set up to run remote external jobs The remote system's scheduler agent must be registered with your database. 1,3 MC edit delete
158 1Z0-062 Which two statements are true about a server parameter file (SPFILE)? (Choose two.) An SPFILE can be created from a PFILE or from memory. A PFILE can be used to start up a database instance even if an SPFILE exists. An SPFILE must reside in the ORACLE_HOME/dbs directory. An SPFILE can be created only before a database instance is started An SPFILE contains only those dynamic parameters that can be changed without having to restart the database instance. 1,2 MC edit delete
157 1Z0-062 Automatic Shared Memory Management is enabled for your database instance. You notice that there are SQL statements performing poorly because of repeated parsing activity. Which action generates recommendations to overcome the performance issues? running the Memory Advisor for the buffer cache running the Memory Advisor for the library cache running the Memory Advisor for the SGA running the Memory Advisor for the PGA 3 SC edit delete
156 1Z0-062 You install Oracle Grid Infrastructure for a standalone server. Which two components are automatically included in the Oracle Restart configuration? (Choose two.) A pre-existing Oracle Net Listener Oracle Notification services A pre-existing database A pre-existing Oracle management agent Oracle CSSD service 2,5 MC edit delete
155 1Z0-062 Your database instance has Automatic Memory Management enabled and supports shared server connections. Q155.png only 1 1, 2, and 5 1, 2, 3, and 5 1, 2, and 4 4 SC edit delete
154 1Z0-062 Which three statements are true about checkpointing? (Choose three.) It prompts the Checkpoint (CKPT) process to write data to the data files and redo information to the online redo log files. It ensures that all dirty buffers are written to data files during consistent shutdown. It reduces the time required for recovery in case of an instance failure. Frequent thread checkpoints can degrade database performance. It prompts the Database Writer (DBWn) process to write checkpoint information into data file headers and the control file. 2,3,4 MC edit delete
153 1Z0-062 Which four statements are true about the components of the Oracle Scheduler? (Choose four.) A schedule can be specified to a single job only. A scheduler job can point to a chain instead of pointing to a single program object. A job may get started automatically when a window opens. A program and job can be specified as part of a schedule definition. A job is specified as part of a program specification. A program can be used in the definition of multiple jobs. A program and schedule can be specified as part of a job definition. 2,3,6,7 MC edit delete
152 1Z0-062 Which two statements are true about the Database Configuration Assistant (DBCA)? (Choose two.) It can be used to create a database template from an existing database. It can be used to add a new tablespace. It can generate SQL database creation scripts. It can be used to copy an existing Oracle database to a new host and apply any patches necessary in the new host. It can configure Automatic Storage Management (ASM) diskgroups. 1,3 MC edit delete
151 1Z0-062 When is the UNDO_RETENTION parameter value ignored by a transaction? when there are multiple undo tablespaces available in a database when the data file of the undo tablespace is autoextensible when the undo tablespace is of a fixed size and retention guarantee is not enabled when Flashback Database is enabled 3 SC edit delete
150 1Z0-062 Backup requirements for a database: * Level 0 backup on Sunday * Cumulative incremental level 1 backup on Monday, Wednesday, and Saturday *Differential incremental level 1 backup on Tuesday, Thursday, and Friday Which three statements are true about the strategy? (Choose three.) Level 0 backup on Sunday contains all the blocks that have been formatted. Level 0 backup on Sunday contains all the blocks that have been changed since the last level 1 backup. Level 1 backup on Tuesday, Thursday, and Friday contains all the blocks that have been changed since the last level 1 backup. Level 1 backup on Monday, Wednesday, and Saturday contains all the blocks that have been changed since the last level 0 backup. Level 1 backup on Tuesday, Thursday, and Friday contains all the blocks that have been changed since the last level 0 backup. 2,4,5 MC edit delete
149 1Z0-062 Which two files must you copy from the Oracle home of the database that is being upgraded to the new Oracle home for Oracle Database 12c? (Choose three.) the tnsnames.ora file the sqlnet.ora file the initialization parameter file the password file the listener.ora file 1,2,5 MC edit delete
148 1Z0-062 For which three requirements would you use the Database Resource Manager? (Choose three.) specifying an idle time limit that applies to sessions that are idle and blocking other sessions limiting the degree of parallelism of operations performed by user sessions in a consumer group specifying the maximum number of concurrent sessions allowed for a user limiting the CPU used per database call specifying the amount of private space a session can allocate in the shared pool of the SGA. 1,2,3 MC edit delete
147 1Z0-062 The HR.DEPARTMENTS table is the parent of the HR.EMPLOYEES table. The EMPLOYEES.DEPARTMENT_ID column has a foreign key constraint with the ON DELETE CASCADE option that refers to the DEPARTMENTS.DEPARTMENT_ID column. An index exists on the DEPARTMENTS.DEPARTMENT_ID column. A transaction deletes a primary key in the DEPARTMENTS table, which has child rows in the EMPLOYEES table. Which statement is true? The transaction acquires a table lock only on the DEPARTMENTS table until the transaction is complete. The transaction acquires a table lock on the DEPARTMENTS table. This lock enables other sessions to query but not update the DEPARTMENTS table until the transaction on the DEPARTMENTS table is complete. The transaction acquires a table lock on the EMPLOYEES table. This lock enables other sessions to query but not update the EMPLOYEES table until the transaction on the DEPARTMENTS table is complete Only the rows that are deleted in the DEPARTMENTS and EMPLOYEES tables are locked until the transaction on the DEPARTMENTS table is complete. 3 SC edit delete
146 1Z0-062 You have a production Oracle 12c database running on a host. Q146.png 1, 5, and 4 3, 1, 5, and 6 2, 3, 6, and 4 2, 1, 6, and 4 2, 3, 1, and 6 5 SC edit delete
145 1Z0-062 The HR user updates the salary of one of the employees in the non-partitioned EMPLOYEES table, but does not commit the transaction. Which two types of lock exist in this situation? (Choose two.) exclusive lock on the EMPLOYEES tabl null lock on the row being updated null lock on the EMPLOYEES table row level lock on the row being updated shared lock on the EMPLOYEES table 4,5 MC edit delete
144 1Z0-062 You create an Oracle 12c database and then import schemas that are required by an application which has not yet been developed. You want to get advice on creation of or modifications to indexes, materialized views and partitioning in these schemas. What must you run to achieve this? SQL Access Advisor with a SQL tuning set Automatic Database Diagnostic Monitor (ADDM) report SQL Tuning Advisor SQL Access Advisor with a hypothetical workload SQL Performance Analyzer 4 SC edit delete
143 1Z0-062 Which four operations performed after the Oracle Restart installation are automatically added to the Oracle Restart configuration? (Choose four.) listener configured by using NETCA database service created by using SRVCTL database created by using a SQL statement database created by using DBCA ASM instance created by using ASMCA database service created by using DBMS_SERVICE.CREATE_SERVICE database service created by modifying the SERVICE_NAMES initialization parameter 2,3,5,6 MC edit delete
142 1Z0-062 You want to upgrade an Oracle Database running Oracle Database 11g to Oracle Database 12c. Which three tasks should be performed before a manual upgrade? (Choose three.) running preupgrad.sql in Oracle Database 11g to generate fix-up scripts and a log file running utlu121s.sql from the new Oracle home to display information about the required initialization parameters copying the initialization parameter file to the new Oracle home copying the password file to the new Oracle home copying net configuration files to the new Oracle home 1,3,5 MC edit delete
141 1Z0-062 Which two statements are true about Oracle Data Pump export and import operations? (Choose two.) You cannot specify how partitioned tables should be handled during an import operation. Only data can be compressed during an export operation. Existing dump files can be overwritten during an export operation. Tables cannot be renamed during an import operation 1,5 MC edit delete
140 1Z0-062 Your database is configured for ARCHIVELOG mode, and a daily full database backup is taken. RMAN is configured to perform control file autobackup. In which three scenarios do you need media recovery? (Choose three.) loss of all the copies of the control file loss of all the inactive online redo log group members loss of a data file that belongs to the active undo tablespace loss of data files that belong to the SYSTEM tablespace logical corruption of data that is caused by a wrong transaction abnormal termination of the database instance 1,3,4 MC edit delete
139 1Z0-062 A database uses Automatic Storage Management (ASM) as database storage, which has a diskgroup, DATA1, which is created as follows: Q139.PNG Mirroring of allocation units occurs within the FAILGRP2 failure group Transactions that are using the diskgroup fail. ASM does not mirror any data and newly allocated primary allocation units (AU) are stored in the FAILGRP2 failure group. Data in the FAILGRP1 failure group is moved to the FAILGRP2 failure group and rebalancing is started. 4 SC edit delete
138 1Z0-062 Which statement is true about redo log files during instance recovery? All current, online, and archived redo logs are required to complete instance recovery All redo log entries in the current and active logs are applied to data files to reconstruct changes made after the most recent checkpoint. All redo log entries in the current log are applied to data files until the checkpoint position is reached. All current, active, and inactive redo logs are required to complete instance recovery 3 SC edit delete
137 1Z0-062 Which set of statements is true about data dictionary views? They are stored in the SYSTEM tablespace. They are based on virtual tables. They are owned by the SYS user. They can be queried by a normal user only if the _DICTIONARY_ACCESSIBILITY parameter is set to TRUE. The V$FIXED_TABLE view can be queried to list the names of these views. They are owned by the SYSTEM user 2, 5, and 6 1, 2, and 3 1 and 3 2, 3, 4, and 5 3 SC edit delete
136 1Z0-062 Your database is running in NOARCHIVLOG mode. Q136.png It executes successfully and sets the Fast Recovery Area as the local archive destination. It executes successfully and issues a warning to set LOG_ARCHIVE_DEST while opening the database. It fails and returns an error about LOG_ARCHIVE_DEST not being set. It executes successfully and sets $ORACLE_HOME/dbs as the default archive destination. 1 SC edit delete
135 1Z0-062 The HR user owns the BONUSES table. HR grants privileges to the user TOM by using the command: SQL> GRANT SELECT ON bonuses TO tom WITH GRANT OPTION; TOM then executes this command to grant privileges to the user JIM: SQL> GRANT SELECT ON hr.bonuses TO jim; Which statement is true? TOM cannot revoke the SELECT ON HR.BONUSES privilege from JIM. HR can revoke the SELECT ON HR.BONUSES privilege from JIM. JIM can grant the SELECT ON HR.BONUSES privilege to other users, but cannot revoke the privilege from them. HR can revoke the SELECT ON HR.BONUSES privilege from TOM, which will automatically revoke the SELECT ON HR.BONUSES privilege from JIM 4 SC edit delete
134 1Z0-062 Which two statements are true about using SQL*Loader? (Choose two.) It can load data from external files by using direct path only. It can load data into multiple tables using the same load statement. It can load data into only one table at a time. It can generate unique sequential key values in specified columns. It can load data from external files by using conventional path only. 1,3 MC edit delete
133 1Z0-062 You want to create a database with a block size other than the default 8 kilobytes (KB) by using the Database Configuration Assistant (DBCA). Which option should you use? Automatic Storage Management (ASM) for storage of data files a file system for storage of data files a Data Warehouse database template a custom database template 4 SC edit delete
132 1Z0-062 Which two options can be configured for an existing database by using the Database Configuration Assistant (DBCA)? (Choose two.) Configure Label Security Database Vault in ORACLE_HOME Oracle Suggested Backup Strategy Database Resident Connection Pooling Nondefault blocksize tablespaces 1,2 MC edit delete
131 1Z0-062 Which statement is true about unified auditing? The unified audit trail, by default, resides in a read-only table in the AUDSYS schema in the SYSAUX tablespace. Only the CREATE, ALTER, and DROP statements are audited for all users, including SYS. Unified auditing is enabled only if the AUDIT_TRAIL parameter is set to NONE. The unified audit trail contains audit records only from unified audit policies and AUDIT settings. 1 SC edit delete
130 1Z0-062 You install Oracle Grid Infrastructure for a standalone server on a host on which the ORCL1 and ORCL2 databases both have their instances running. Which two statements are true? (Choose two.) All databases subsequently created by using the Database Configuration Assistant (DBCA) are automatically added to the Oracle Restart configuration. The srvctl add database command must be used to add ORCL1 and ORCL2 to the ORACLE Restart configuration. Both ORCL1 and ORCL2 are automatically added to the Oracle Restart configuration. All database listeners running from the database home are automatically added to the Oracle Restart configuration. The crsctl start has command must be used to start software services for Oracle Automatic Storage Management (ASM) after the “Oracle Grid Infrastructure for a standalone server” installation is complete. 2,4 MC edit delete
129 1Z0-062 A user establishes a connection to a database instance by using an Oracle Net. You want to ensure that: The user account must be locked after five consecutive unsuccessful login attempts. Data read per session must be limited for the user. The user cannot have more than three simultaneous sessions. The user must have a maximum of 10 minutes session idle time before being logged off automatically. Which two would you do to implement this? (Choose two.) by alerting the appropriate user attributes with an ALTER USER command by using appropriate PASSWORD parameters set in the profile assigned to the user by implementing Database Resource Manager and assign it a profile for the user by implementing Database Resource Manager and assign it a role for the use by using appropriate KERNEL parameters set in the profile assigned to the user 1,4 MC edit delete
128 1Z0-062 Which two categories of segments are analyzed by the Automatic Segment Advisor? (Choose two.) segments in tablespaces that have exceeded a critical or warning space threshold segments that have the highest growth rate in a database segments that are sparsely populated and have more than 10% of free space below the high water mark. segments that have unusable indexes segments for tables created using ADVANCED ROW COMPRESSION 1,2 MC edit delete
127 1Z0-062 Your database is configured in ARCHIVELOG mode, and daily full database backups are taken. RMAN is configured to perform control file autobackups. Which statement is true about the loss of a duplexed control file? The database remains open but transactions are not permitted. The database instance aborts, and media recovery is required after restoration of the control file to open the database. The database instance remains open and the control file can be restored without shutting down the database. The database instance aborts and a control file restore operation does not require media recovery. 3 SC edit delete
126 1Z0-062 What is the effect of setting the STATISTICS_LEVEL initialization parameter to BASIC? Optimizer statistics are collected automatically. Only timed operating system (OS) statistics and plan execution statistics are collected. Automatic Workload Repository (AWR) snapshots are not generated automatically. The Oracle server dynamically generates the necessary object-level statistics on tables as part of query optimization. 3 SC edit delete
125 1Z0-062 Which two statements describe the relationship between a scheduler window, a resource manager plan, and a job class? (Choose two.) A scheduler window together with a job class, controls resource allocation for a job using that job class in that scheduler window. A job class specifies a scheduler window that will be open when that job class becomes active. A scheduler window specifies a resource manager plan that will be activated when that scheduler window becomes active. A scheduler window specifies a job class that will be activated when that scheduler window becomes active. A scheduler window can control resource allocation by itself. 4,5 MC edit delete
124 1Z0-062 Which three statements are true about Database Resource Manager? (Choose three.) A resource plan change can be automated by using the Oracle Scheduler. It can be used to control the consumption of only physical I/Os where excessive physical I/Os can trigger an automatic session termination but excessive logical I/Os cannot. It can be used to control the usage of the undo tablespace by consumer groups. A resource plan can have multiple resource plan directives, each of which controls resource allocation for a different consumer group. It can be used to enable resumable timeout for user sessions. It can be used to control the usage of the temp tablespace by consumer groups. 1,3,4 MC edit delete
123 1Z0-062 Which two statements are true about availability audit features after migration to unified auditing? (Choose two.) The ability of users to audit their own schema objects is not available in the post-migrated database. Operating system audit trail is available in the post-migrated database. Network auditing is available in the post-migrated database. Mandatory auditing of audit administrative actions is available in the post-migrated database. 1,4 MC edit delete
122 1Z0-062 In which situations does the Database Writer process (DBWn) write to data files? (Choose two). when the RMAN recovery process starts when a user process commits a transaction when a tablespace is made read-only or taken offline when PMON cleans up dirty buffers in the database buffer cache when clean buffers for reading new blocks into the database buffer cache are not found easily 2,4 MC edit delete
121 1Z0-062 Your database supports a Decision Support System (DSS) workload that involves the execution of complex queries. Currently, the database is running with peak workload. You want to analyze some of the most resource-intensive statements cached in the library cache. What must you run to receive recommendations on the efficient use of indexes and materialized views to improve query performance? Automatic Database Diagnostic Monitor (ADDM) SQL Tuning Advisor SQL Access Advisor SQL Performance Analyzer Automatic Workload Repository (AWR) report 3 SC edit delete
120 1Z0-062 Your production database PROD uses file system storage. You want to migrate storage including the Fast Recovery Area for the PROD database to Oracle Automatic Storage Management (ASM) by using RMAN. You back up the entire database. What should the next step be in this migration process? enabling row movement for the database disabling Oracle Flashback Database if enabled opening the database in exclusive mode placing all tablespaces in read-only mode 2 SC edit delete
119 1Z0-062 You want execution of large database operations to suspend, and then resume, in the event of space allocation failures. You set the value of the initialization parameter RESUMABLE_TIMEOUT to 3600. Which two statements are true? (Choose two.) Before a statement executes in resumable mode, the ALTER SESSION ENABLE RESUMABLE statement must be issued in its session. Data Manipulation Language (DML) operations are resumable, provided that they are not embedded in a PL/SQL block. A resumable statement can be suspended and resumed only once during execution. A suspended statement will report an error if no corrective action has taken place during a timeout period. Suspending a statement automatically results in suspending a transaction and releasing all the resources held by the transaction. 1,4 MC edit delete
118 1Z0-062 You want to create a database and you have the following: Q118.png 1, 2, 4, 5, 7, 8, 9 and 10 1, 2, 4, 5, 6 and 7 1, 2, 3, 8, 9 and 10 1, 2, 3, 4, 6, 8, 9 and 10 1, 2, 4, 5, 6, 7 and 8 4 SC edit delete
117 1Z0-062 Your database instance is started by using a server parameter file (SPFILE). You execute the following command to change the value of the LOG_BUFFER initialization parameter: Q117.PNG The parameter value is changed and it comes into effect as soon as space becomes available in the SGA. It returns an error because the value of this parameter cannot be changed dynamically The parameter value is changed and it comes into effect at the next instance startup. It returns an error because SCOPE should be set to MEMORY. 3 SC edit delete
116 1Z0-062 You perform RMAN backups for your database and use a recovery catalog for managing the backups. To free space, you execute this command Q116.PNG The backup sets marked as expired are deleted. The information related to the backups is removed from the recovery catalog and the control file. The physical files related to the backup need to be manually deleted. The physical files related to the backup are deleted automatically. The backups deleted are based on the backup retention policy. 2,4,5 MC edit delete
115 1Z0-062 You want to create a role that: - is protected from unauthorized usage - does not use a password embedded in the application source code or stored in a table - is enabled for a user based on security policies defined in a PL/SQL package How would you create this role? as a secure application role with definer’s rights with global authentication with external authentication 1 SC edit delete
114 1Z0-062 Which activity is audited by default and recorded in the operating system audit trail irrespective of whether or not database auditing is enabled? execution of SQL statements by users connected with the SYSDBA privilege creation of a fine-grained audit policy configuration of unified auditing mode usage of the AUDIT statement 1 SC edit delete
113 1Z0-062 You use multiple temporary tables frequently in your database. Which two are benefits of configuring temporary undo? (Choose two.) Performance improves because less redo is written to the redo log. Temporary undo reduces the amount of undo stored in undo tablespaces Performance improves because data manipulation language (DML) operations performed on temporary tables do not use the buffer cache. Performance improves because no redo and undo are generated for the temporary tables. 1,2 MC edit delete
112 1Z0-062 Your production database uses file system storage. You want to move storage to Oracle Automatic Storage Management (ASM). How would you achieve this? by using a transportable database by using the Database Upgrade Assistant (DBUA) by using Data Pump by using RMAN 4 SC edit delete
111 1Z0-062 Your database is configured in ARCHIVELOG mode. Examine the RMAN configuration parameters: What is the outcome? Q111.PNG It fails because the DELETE INPUT option can be used only with the BACKUP AS BACKUPSET command. It executes successfully and creates a backup set of the database along with archived log files and then deletes the original archived log files. It fails because the DELETE INPUT option can be used only with the BACKUP AS COPY command. It fails because the DELETE INPUT option can be used only with the BACKUP AS COPY command. 2 SC edit delete
110 1Z0-062 Which three statements are true about the purpose of checkpoints? (Choose three.) They ensure that uncommitted transactions are rolled back in case of an instance failure. They ensure that all the dirty buffers are written to disk during a normal shutdown. They ensure that instance recovery starts in the event of an instance failure. They ensure that dirty buffers in the buffer cache are written to disk regularly. They reduce the time required for recovery in case of an instance failure. 2,4,5 MC edit delete
109 1Z0-062 Examine the parameters for a database instance: Q109.PNG Undo records for temporary tables are stored in a temporary tablespace Undo records for temporary tables are stored in the undo tablespace and logged in the redo. Undo records for temporary tables are stored in the undo tablespace and logged in the redo only for those sessions where temporary undo is enabled. No redo is generated for the undo records belonging to temporary tables. No redo and undo records are generated for temporary tables. 1,5 MC edit delete
108 1Z0-062 Which three statements are true about automated maintenance tasks? (Choose three.) They run at predefined time intervals that are intended to occur during a period of low system load. An Oracle Scheduler job is created for each maintenance task that is scheduled to run in a maintenance window. A maintenance window is automatically extended until all the maintenance tasks defined are completed. A repository is maintained in the SYSTEM tablespace to store the history of execution of all tasks Predefined maintenance tasks consist of automatic optimizer statistics collection, running Automatic Segment Advisor, and running Automatic SQL Tuning Advisor 1,2,5 MC edit delete
107 1Z0-062 The DEFERRED_SEGMENT_CREATION parameter is set to TRUE in your database instance. You execute the following command to create a table: Q107.PNG The table is created without a segment because the storage clause is missing. A segment is allocated when the first row is inserted in the table. A segment is allocated when an index is created for any column in the table The table is created and extents are immediately allocated as per the default storage defined for its tablespace. A segment is allocated for the table if the ALTER TABLE… ALLOCATE EXTENT command is issued. 2,5 SC edit delete
106 1Z0-062 You plan to install the Oracle Database 12c software on a new server. The database will use Automatic Storage Management (ASM) and Oracle Restart. Oracle Grid Infrastructure for a standalone server is already installed on the server. You want to configure job role separation. You create the following operating system users and groups: The user oracle as the owner of the Oracle database installation - The user grid as the owner of Oracle Grid Infrastructure - The group oinstall as an Oracle Inventory group - The group dba as the OSDBA group for Oracle database - The group asmdba as the OSDBA group for Oracle ASM - The group asmadmin as the administration privileges group for Oracle ASM - The group asmoper as the group for Oracle ASM Which two additional tasks should you perform with regard to the OS-level owners and groups? (Choose two.) creating a separate central inventory group for the Oracle Database 12c installation assigning oinstall as the primary group for the oracle user assigning asmadmin and asmoper as primary groups for the oracle user creating OS groups associated with the OSBACKUPDBA, OSDGDBA, and OSKMDBA system privileges assigning asmdba as the secondary group for the oracle user 2,4 MC edit delete
105 1Z0-062 What should you do to ensure that a job stores minimal job metadata and runtime data on disk, and uses only existing PL/SQL programs? Create an event-based job. Create a lightweight job. Specify the job as a member of a job class. Use a job array 2 SC edit delete
104 1Z0-062 You have just completed a manual upgrade of an Oracle 11g Database to Oracle Database 12c. The Post-Upgrade Status Tool reports an INVALID status for some of the components after the upgrade. What must you do first in this situation to attempt to fix this problem? Run catuppst.sql to perform revalidation actions Run utluiobj.sql to filter out objects that were invalidated by the upgrade process. Run preupgrd.sql and then execute the generated “fix-up” scripts to resolve status issues Run utlrp.sql to recompile stored PL/SQL and Java code and check the DBA_REGISTRY view. 4 SC edit delete
103 1Z0-062 What can be automatically implemented after the SQL Tuning Advisor is run as part of the Automated Maintenance Task? statistics recommendations SQL profile recommendations SQL statement restructure recommendations creation of materialized views to improve query performance 2 SC edit delete
102 1Z0-062 You want to prevent a group of users in your database from performing long-running transactions that consume huge amounts of space in the undo tablespace. If the quota for these users is exceeded during execution of a data manipulation language (DML) statement, the operation should abort and return an error. However, queries should still be allowed, even if users have exceeded the undo space limitation. How would you achieve this? Specify the maximum amount of quota a user can be allocated in the undo tablespace. Decrease the number of Interested Transaction List (ITL) slots for the segments on which these users perform transactions Implement a profile for these users. Implement a Database Resource Manager plan. 4 SC edit delete
101 1Z0-062 Which two actions does an incremental checkpoint perform? (Choose two). It signals CKPT to write the checkpoint position to the data file headers. It writes the checkpoint position to the data file headers. It advances the checkpoint position in the checkpoint queue. It writes the checkpoint position to the control file. 3,4 MC edit delete
100 1Z0-062 Which two statements are true about the (PMON) background process in Oracle Database 12c? (Choose two). It records checkpoint information in the control file. It frees unused temporary segments. It kills sessions that exceed idle time. It registers database services with all local and remote listeners known to the database instance. It frees resources held by abnormally terminated processes. 4,5 MC edit delete
99 1Z0-062 You execute this command: Q99.PNG Space utilization inside segments is mapped by bitmaps. Segments are automatically shrunk and compressed when rows are deleted. The PCTFREE storage parameter has no effect on segments created in this tablespace. The PCTUSED storage parameter has no effect on segments created in this tablespace. 1,4 MC edit delete
98 1Z0-062 You want to schedule a job to rebuild a table's indexes after a bulk insert, which must be scheduled as soon as a file containing data arrives on the system. What would you do to accomplish this? Create a file watcher and an event-based job for bulk insert and then create another job to rebuild indexes on the table. Create a file watcher for the bulk inserts and then create a job to rebuild indexes. Create a job array and add a job for bulk insert and a job to rebuild indexes to the job array. Create an event-based job for the file arrival event, then create a job for bulk insert, and then create a job to rebuild indexes. 1 SC edit delete
97 1Z0-062 Which three statements are true about Oracle Restart? (Choose three.) It can be configured to automatically attempt to restart various components after a hardware or software failure. While starting any components, it automatically attempts to start all dependencies first and in proper order. It can be configured to automatically restart a database in case of normal shutdown of the database instance. It can be used to only start Oracle components. It runs periodic check operations to monitor the health of Oracle components. 2,4,5 MC edit delete
96 1Z0-062 You have the following entry in the tnsnames.ors of your hq.us.example.com host machine: Q96.PNG The connection succeeds, provided the NAMES.DEFAULT_DOMAIN parameter is set to us.example.com in the sqlnet.ora file on the client side. The connection fails because the net service name does not have the suffix us.example.com. The connection succeeds, provided the SERVICE_NAMES initialization parameter is set to ORCL. The connection succeeds, provided the ORCL.us.example.com database service is registered with a listener, the listener is up, and the database is open 4 SC edit delete
95 1Z0-062 Your database instance has started using an SPFILE. Examine the RMAN configuration settings: Q95.PNG Online redo log files Control file SPFILE Archived redo log files Data file(s) PFILE 2,3,5 MC edit delete
94 1Z0-062 Which three statements are true about Oracle Data Pump? (Choose three). IMPDP can be used to change target data file names, schemas, and tablespaces during import. The DBMS_DATAPUMP PL/SQL package can be used independently of Data Pump clients to perform export and import operations. EXPDP and IMPDP are the client components of Oracle Data Pump. Oracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege. IMPDP always use the conventional path insert method to import data. 1,2,3 MC edit delete
93 1Z0-062 You executed the following command to create a password file in the database server: Q93.png It records usernames and passwords of users when granted the DBA role It contains usernames and passwords of users for whom auditing is enabled It is used by Oracle to authenticate users for remote database administrator It records usernames and passwords of all users when they are added to OSDBA or OSOPER operating groups 1 SC edit delete
92 1Z0-062 Which two statements are true about standard database auditing? (Choose two.) DDL statements can be audited. Statements that refer to standalone procedure can be audited. Operations by the users logged on as SYSDBA cannot be audited. Only one audit record is ever created for a session per audited statement even though it is executed more than once. 1,2 MC edit delete
91 1Z0-062 The user SCOTT owns the CUST table that is placed in the SALES tablespace. The user SCOTT opens a session and executes commands as follows: SQL> INSERT INTO cust VALUES(101, 'JACK'); 1 row created. SQL> INSERT INTO cust VALUES(102, 'SMITH'); 1 row created. As a DBA, you execute the following command from another session: ALTER TABLESPACE sales READ ONLY; Which statement is true regarding the effect of this command on the transaction in Scott's session? The command fails as a transaction is still pending. The transaction in Scott's session is rolled back and the tablespace becomes readonly. The command waits and the user SCOTT can execute data manipulation language (DML) statements only as part of the current transaction. The command hangs until all transactions on the objects in the tablespace commit or rollback, and then the tablespace is placed in readonly mode. 2 SC edit delete
90 1Z0-062 In your production database, data manipulation language (DML) operations are executed on the SALES table. You have noticed some dubious values in the SALES table during the last few days. You are able to track users, actions taken, and the time of the action for this particular period but the changes in data are not tracked. You decide to keep track of both the old data and new data in the table long with the user information. What action would you take to achieve this task? Apply fine-grained auditing. Implement value-based auditing. Impose standard database auditing to audit object privileges. Impose standard database auditing to audit SQL statements. 2 SC edit delete
89 1Z0-062 Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database. You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted. What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB? Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDB. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command. Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command. Take the USERDATA tablespace offline in ACCOUNTS_PDB. 4 SC edit delete
88 1Z0-062 Which statement is true about Oracle Net Listener? It acts as the listening endpoint for the Oracle database instance for all local and non-local user connections. A single listener can service only one database instance and multiple remote client connections Service registration with the listener is performed by the process monitor (PMON) process of each database instance The listener.ora configuration file must be configured with one or more listening protocol addresses to allow remote users to connect to a database instance. The listener.ora configuration file must be located in the ORACLE_HOME/network/admin directly 3 SC edit delete
87 1Z0-062 Which two statements are true about the use of the procedures listed in the v$sysaux_occupants.move_procedure column? (Choose two.) The procedure may be used for some components to relocate component data to the SYSAUX tablespace from its current tablespace. The procedure may be used for some components to relocate component data from the SYSAUX tablespace to another tablespace. All the components may be moved into SYSAUX tablespace. All the components may be moved from the SYSAUX tablespace. 1,2 MC edit delete
86 1Z0-062 Examine the following commands for redefining a table with Virtual Private Database (VPD) policies: Q86.PNG All the triggers for the table are disabled without changing any of the column names or column types in the table. The primary key constraint on the EMPLOYEES table is disabled during redefinition. VPD policies are copied from the original table to the new table during online redefinition You must copy the VPD policies manually from the original table to the new table during online redefinition. 2,3 MC edit delete
85 1Z0-062 Your multitenant container (CDB) contains two pluggable databases (PDB), HR_PDB and ACCOUNTS_PDB, both of which use the CDB tablespace. The temp file is called temp01.tmp. A user issues a query on a table on one of the PDBs and receives the following error: ERROR at line 1: ORA-01565: error in identifying file ‘/u01/app/oracle/oradata/CDB1/temp01.tmp’ ORA-27037: unable to obtain file status Identify two ways to rectify the error. (Choose two). Add a new temp file to the temporary tablespace and drop the temp file that that produced the error. Shut down the database instance, restore the temp01.tmp file from the backup, and then restart the database. Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and then bring the temporary tablespace online. Shutdown the database instance, restore and recover the temp file from the backup, and then open the database with RESETLOGS. Shut down the database instance and then restart the CDB and PDBs. 1,5 MC edit delete
84 1Z0-062 You upgraded from a previous Oracle database version to Oracle Database version to Oracle Database 12c. Your database supports a mixed workload. During the day, lots of insert, update, and delete operations are performed. At night, Extract, Transform, Load (ETL) and batch reporting jobs are run. The ETL jobs perform certain database operations using two or more concurrent sessions. After the upgrade, you notice that the performance of ETL jobs has degraded. To ascertain the cause of performance degradation, you want to collect basic statistics such as the level of parallelism, total database time, and the number of I/O requests for the ETL jobs. How do you accomplish this? Examine the Active Session History (ASH) reports for the time period of the ETL or batch reporting runs. Enable SQL tracing for the queries in the ETL and batch reporting queries and gather diagnostic data from the trace file. Enable real-time SQL monitoring for ETL jobs and gather diagnostic data from the V$SQL_MONITOR view. Enable real-time database operation monitoring using the DBMS_SQL_MONITOR.BEGIN_OPERATION function, and then use the DBMS_SQL_MONITOR.REPORT_SQL_MONITOR function to view the required information. 4 SC edit delete
83 1Z0-062 Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3. Which two RMAN commands may be; used to back up only the PDB1 pluggable database? (Choose two). BACKUP PLUGGABLE DATABASE PDB1 while connected to the root container BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container BACKUP DATABASE while connected to the PDB1 container BACKUP DATABASE while connected to the boot container BACKUP PLUGGABLE database PDB1 while connected to PDB2 1,3 MC edit delete
82 1Z0-062 On your Oracle 12c database, Q82.png Both the indexes are created; however, only the ORD_COSTOMER index is visible. The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan Only the ORD_CUSTOMER_IX1 index is created Only the ORD_CUSTOMER_IX2 index is created. Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table. 1,5 MC edit delete
81 1Z0-062 A database is stored in an Automatic Storage Management (ASM) disk group, disk group, DGROUP1 with SQL: Q81.PNG Transactions and queries accessing database objects contained in any tablespace stored in DGROUP1 will fall. Mirroring of allocation units will be done to ASM disks in the CONTROLLER2 failure group until the CONTROLLER1 for failure group is brought back online. The data in the CONTROLLER1 failure group is copied to the controller2 failure group and rebalancing is initiated. ASM does not mirror any data until the controller failure group is brought back online, and newly allocated primary allocation units (AU) are stored in the controller2 failure group, without mirroring. Transactions accessing database objects contained in any tablespace stored in DGROUP1 will fail but queries will succeed. 4 SC edit delete
80 1Z0-062 Which two are prerequisites for performing a flashback transaction? (Choose two.) Flashback Database must be enabled Undo retention guarantee for the database must be configured EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction. Supplemental logging must be enabled. Recycle bin must be enabled for the database. Block change tracking must be enabled tor the database. 2,4 MC edit delete
79 1Z0-062 You are connected to a pluggable database (PDB) as a common user with DBA privileges. The STATISTICS_LEVEL parameter is PDB_MODIFIABLE. You execute the following: SQL > ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = ‘*’ SCOPE = SPFILE; Which is true about the result of this command? The STATISTICS_LEVEL parameter is set to all whenever this PDB is re-opened. The STATISTICS_LEVEL parameter is set to ALL whenever any PDB is reopened. The STATISTICS_LEVEL parameter is set to all whenever the multitenant container database (CDB) is restarted. Nothing happens; because there is no SPFILE for each PDB, the statement is ignored. 1 SC edit delete
78 1Z0-062 Examine the query and its output executed In an RDBMS Instance: Q78.PNG The C # # B_ADMIN user can perform all backup and recovery operations using RMAN only The C # # C_ADMIN user can perform the data guard operation with Data Guard Broker The C # # A_ADMIN user can perform wallet operations. The C # # D_ADMIN user can perform backup and recovery operations for Automatic Storage Management (ASM). The C # # B_ADMIN user can perform all backup and recovery operations using RMAN or SQL* Plus. 2,4,5 MC edit delete
77 1Z0-062 In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time. How would you accomplish this? Setting a metric threshold Implementing Database Resource Manager Enabling resumable timeout for user sessions Decreasing the value of the IDLE_TIME resource limit in the default profile 2 SC edit delete
76 1Z0-062 Examine these two statements: Q76.PNG The MRKT tablespace is created as a small file tablespace, because the file size is less than the minimum required for big file files. The MRKT tablespace may be dropped if it has no contents. Users who were using the old default tablespace will have their default tablespaces changed to the MRKT tablespace. No more data files can be added to the tablespace. The relative file number of the tablespace is not stored in rowids for the table rows that are stored in the MRKT tablespace. 3,4,5 MC edit delete
75 1Z0-062 You want to flash back a test database by five hours. Q75.png The database must have multiplexed redo logs for the flashback to succeed. The database must be MOUNTED for the flashback to succeed. The database must use block change tracking for the flashback to succeed. The database must be opened in the restricted mode for the flashback to succeed. The database must be opened with the RESETLOGS option after the flashback is complete. The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN. 2,5 MC edit delete
74 1Z0-062 Which three statements are true about SQL plan directives? (Choose three.) They are tied to a specific statement or SQL ID. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan. They are used to gather only missing statistics. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect. They instruct the optimizer to create only column group statistics. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace. 2,4,6 MC edit delete
73 1Z0-062 Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the HR_PDB. You execute the following command: Q73.PNG It executes successfully and creates an UNDO tablespace in HR_PDB. It falls and reports an error because there can be only one undo tablespace in a CDB. It fails and reports an error because the CONTAINER=ALL clause is not specified in the command. It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the command. It executes successfully but neither tablespace nor the data file is created. 5 SC edit delete
72 1Z0-062 Which three statements are true about the working of system privileges in a multitenant control database (CDB) that has pluggable databases (PDBs)? (Choose three.) System privileges apply only to the PDB in which they are used. Local users cannot use local system privileges on the schema of a common user. The granter of system privileges must possess the set container privilege Common users connected to a PDB can exercise privileges across other PDBs. System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users 1,3,5 MC edit delete
71 1Z0-062 The persistent configuration settings for RMAN have default for all parameters. Identify four RMAN commands that produce a multi-section backup. (Choose four.) BACKUP TABLESPACE SYSTEM SECTION SIZE 100M; BACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M; BACKUP ARCHIVELOG ALL SECTION SIZE 25M; BACKUP TABLESPACE "TEMP" SECTION SIZE 10M; BACKUP TABLESPACE "UNDO" INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M; BACKUP SPFILE SECTION SIZE 1M; BACKUP INCREMENTAL LEVEL 0 TABLESPACE SYSAUX SECTION SIZE 100M; 1,2,5,7 MC edit delete
70 1Z0-062 In your multitenant container database (CDB) containing same pluggable databases (PDBs), you execute the following commands in the root container: Q70.PNG The C # # ROLE1 role is created in the root database and all the PDBs. The C # # ROLE1 role is created only in the root database because the container clause is not used. Privileges are granted to the C##A_ADMIN user only in the root database. Privileges are granted to the C##A_ADMIN user in the root database and all PDBs. The statement for granting a role to a user fails because the CONTAINER clause is not used. 1,3 MC edit delete
69 1Z0-062 A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result? (Choose three.) Using a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries. Using a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries. Using a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column. Converting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned column. Using a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries. Using a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries. 1,3,5 MC edit delete
68 1Z0-062 On your Oracle Database, you issue the following commands to create indexes: Q68.png Only the ORD_CUSTOMER_IX1 index created. Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table. The ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true. Both the indexes are created and used by the optimizer for queries on the ORDERS table. Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table. 2,6 MC edit delete
67 1Z0-062 You created an encrypted tablespace: Q67.PNG It creates the table successfully but does not encrypt any inserted data in the EMPNAME column because the wallet must be opened to encrypt columns with SALT. It generates an error when creating the table because the wallet is closed. It creates the table successfully, and encrypts any inserted data in the EMPNAME column because the wallet needs to be open only for tablespace creation. It generates error when creating the table, because the salt option cannot be used with encrypted tablespaces. 2 SC edit delete
66 1Z0-062 You find this query being used in your Oracle 12c database: Q66.PNG A filter is added to the table query dynamically using ROWNUM to limit the rows to 20 percent of the total rows All the rows are returned to the client or middle tier but only the first 20 percent are returned to the screen or the application A view is created during execution and a filter on the view limits the rows to 20 percent of the total rows. A TOP-N query is created to limit the rows to 20 percent of the total rows 3 SC edit delete
65 1Z0-062 You create a table with the PERIOD FOR clause to enable the use of the Temporal Validity feature of Oracle Database 12c. Q65.PNG The valid time columns employee_time_start and employee_time_end are automatically created. The same statement may filter on both transaction time and valid temporal time by using the AS OF TIMESTAMP and PERIOD FOR clauses. The valid time columns are not populated by the Oracle Server automatically. The valid time columns are visible by default when the table is described. Setting the session valid time using DBMS_FLASHBACK_ARCHIVE.ENABLE_AT_VALID_TIME sets the visibility for data manipulation language (DML), data definition language (DDL), and queries performed by the session. 1,2,3 MC edit delete
64 1Z0-062 Which three activities are supported by the Data Recovery Advisor? (Choose three.) Advising on block checksum failures Advising on inaccessible control files Advising on inaccessible block change tracking files Advising on empty password files Advising on invalid block header field values 1,2,5 MC edit delete
63 1Z0-062 What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archiving enabled? Q622.PNG It fails with the ORA-665610 Invalid DDL statement on history-tracked message The rows in the table are truncated without being archived. The rows in the table are archived, and then truncated. The rows in both the table and the archive are truncated. 3 SC edit delete
62 1Z0-062 A redaction policy was added to the SAL column of the SCOTT.EMP table: Q62.PNG SYS sessions, regardless of the roles that are set in the session SYSTEM sessions, regardless of the roles that are set in the session SCOTT sessions, only if the MGR role is set in the session SCOTT sessions, only if the MGR role is granted to SCOTT SCOTT sessions, because he is the owner of the table SYSTEM session, only if the MGR role is set in the session 1,2,4 MC edit delete
61 1Z0-062 Which three operations can be performed as multipartition operations in Oracle? (Choose three.) Merge partitions of a list partitioned table Drop partitions of a list partitioned table Coalesce partitions of a hash-partitioned global index. Move partitions of a range-partitioned table Rename partitions of a range partitioned table Merge partitions of a reference partitioned index 1,2,6 MC edit delete
60 1Z0-062 Examine the parameters for your database instance: Q601.PNG The optimizer automatically changes a plan during subsequent execution of a SQL statement if there is a huge difference in optimizer estimates and execution statistics The optimizer can re optimize a query only once using cardinality feedback The optimizer enables monitoring for cardinality feedback after the first execution of a query. The optimizer does not monitor cardinality feedback if dynamic sampling and multicolumn statistics are enabled. After the optimizer identifies a query as a re-optimization candidate, statistics collected by the collectors are submitted to the optimizer 1,3,4 MC edit delete
59 1Z0-062 In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true? A. The CDB must be open. The CDB must be in the mount stage. The CDB must be in the nomount stage. Alt existing PDBs must be closed. 1 SC edit delete
58 1Z0-062 You are required to migrate your 11.2.0.3 database as a pluggable database (PDB) to a multitenant container database (CDB). Q58.png 2, 1, 3, 4, 5, 6 1, 3, 4, 5, 6, 7 1, 4, 3, 5, 6, 7 2, 1, 3, 4, 5, 6, 7 . 1, 5, 6, 4, 3, 2 3 SC edit delete
57 1Z0-062 Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyze impact on the performance of SQL statements. (Choose three.) Change in the Oracle Database version Change in your network infrastructure Change in the hardware configuration of the database server Migration of database storage from non-ASM to ASM storage Database and operating system upgrade 1.,3,5 MC edit delete
56 1Z0-062 Which two statements are true about Oracle Managed Files (OMF)? (Choose two.) OMF cannot be used in a database that already has data files created with user-specified directions. The file system directions that are specified by OMF parameters are created automatically. OMF can be used with ASM disk groups, as well as with raw devices, for better file management. OMF automatically creates unique file names for table spaces and control files. OMF may affect the location of the redo log files and archived log files. 4,5 MC edit delete
55 1Z0-062 You configure your database Instance to support shared server connections. Which two memory areas that are part of PGA are stored in SGA instead, for shared server connection? (Choose two.) User session data. Stack space Private SQL area Location of the runtime area for DML and DDL Statements Location of a part of the runtime area for SELECT statements 1,3 MC edit delete
54 1Z0-062 Which two partitioned table maintenance operations support asynchronous Global Index Maintenance in Oracle database 12c? (Choose two.) ALTER TABLE SPLIT PARTITION ALTER TABLE MERGE PARTITION ALTER TABLE TRUNCATE PARTITION ALTER TABLE ADD PARTITION ALTER TABLE DROP PARTITION ALTER TABLE MOVE PARTITION 3,5 MC edit delete
53 1Z0-062 Which three tasks can be automatically performed by the Automatic Data Optimization feature of Information lifecycle Management (ILM)? (Choose three.) Tracking the most recent read time for a table segment in a user tablespace Tracking the most recent write time for a table segment in a user tablespace Tracking insert time by row for table rows Tracking the most recent write time for a table block Tracking the most recent read time for a table segment in the SYSAUX tablespace 1,2,4 MC edit delete
52 1Z0-062 A senior DBA asked you to execute the following command to improve performance: SQL> ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle); You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows. What could be a reason for this recommendation? The keep pool is not configured. Automatic Workarea Management is not configured. Automatic Shared Memory Management is not enabled. The data blocks in the SUBSCRIBE_LOG table are rarely accessed. All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view 4 SC edit delete
51 1Z0-062 You executed this command to create a password file: $ orapwd file = orapworcl entries = 10 ignorecase = N Which two statements are true about the password file? (Choose two.) It will permit the use of uppercase passwords for database users who have been granted the SYSOPER role. It contains username and passwords of database users who are members of the OSOPER operating system group. It contains usernames and passwords of database users who are members of the OSDBA operating system group. It will permit the use of lowercase passwords for database users who have granted the SYSDBA role. It will not permit the use of mixed case passwords for the database users who have been granted the SYSDBA role. 1,4 MC edit delete
50 1Z0-062 To enable the Database Smart Flash Cache, you configure the following parameters: DB_FLASH_CACHE_FILE = ‘/dev/flash_device_1’ , ‘/dev/flash_device_2’ DB_FLASH_CACHE_SIZE=64G What is the result when you start up the database instance? It results in an error because these parameter settings are invalid. One 64G flash cache file will be used. Two 64G flash cache files will be used. Two 32G flash cache files will be used. 1 SC edit delete
49 1Z0-062 You support Oracle Database 12c Oracle Database 11g, and Oracle Database log on the same server. All databases of all versions use Automatic Storage Management (ASM). Which three statements are true about the ASM disk group compatibility attributes that are set for a disk group? (Choose three.) The ASM compatibility attribute controls the format of the disk group metadata. RDBMS compatibility together with the database version determines whether a database Instance can mount the ASM disk group. The RDBMS compatibility setting allows only databases set to the same version as the compatibility value, to mount the ASM disk group. The ASM compatibility attribute determines some of the ASM features that may be used by the Oracle disk group. The ADVM compatibility attribute determines the ACFS features that may be used by the Oracle 10 g database. 1,2,4 MC edit delete
48 1Z0-062 Which three statements are true about using flashback database in a multitenant container database (CDB)? (Choose three.) (Choose three.) The root container can be flashed back without flashing back the pluggable databases (PDBs). To enable flashback database, the CDB must be mounted. Individual PDBs can be flashed back without flashing back the entire CDB The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the CDB ACDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point. 1,2,4 MC edit delete
47 1Z0-062 Your database is open and the LISTENER listener running. You stopped the wrong listener LISTENER by issuing the following command: 1snrctl > STOP What happens to the sessions that are presently connected to the database Instance? They are able to perform only queries. They are not affected and continue to function normally. They are terminated and the active transactions are rolled back. They are not allowed to perform any operations until the listener LISTENER is started. 2 SC edit delete
46 1Z0-062 You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script? (Choose two.) The seed will be in mount state. The seed will be opened read-only. The seed will be opened read/write. The other PDBs will be in mount state. The other PDBs will be opened read-only. The PDBs will be opened read/write. 2,4 MC edit delete
45 1Z0-062 You notice that the elapsed time for an important database scheduler Job is unacceptably long. The job belongs to a scheduler job class and window. Which two actions would reduce the job elapsed time? (Choose two.) Increasing the priority of the job class to which the job belongs Increasing the job's relative priority within the Job class to which it belongs Increasing the resource allocation for the consumer group mapped to the scheduler job's job class within the plan mapped to the scheduler window Moving the job to an existing higher priority scheduler window with the same schedule and duration Increasing the value of the JOB_QUEUE_PROCESSES parameter Increasing the priority of the scheduler window to which the job belongs 2,3 MC edit delete
44 1Z0-062 You use a recovery catalog for maintaining your database backups. You execute the following command: $rman TARGET / CATALOG rman / cat@catdb RMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL; Which two statements are true? (Choose two.) Corrupted blocks, if any, are repaired. Checks are performed for physical corruptions. Checks are performed for logical corruptions. Checks are performed to confirm whether all database files exist in correct locations Backup sets containing both data files and archive logs are created. 2,4 MC edit delete
43 1Z0-062 Examine the contents of SQL loader control file: Q42.PNG An EMP table is created if a table does not exist. Otherwise, if the EMP table is appended with the loaded data. The SQL* Loader data file myfile1.dat has the column names for the EMP table. The SQL* Loader operation fails because no record terminators are specified. Field names should be the first line in the both the SQL* Loader data files. The SQL* Loader operation assumes that the file must be a stream record format file with the normal carriage return string as the record terminator 1,2,5 MC edit delete
42 1Z0-062 Examine the following parameters for a database instance: MEMORY_MAX_TARGET=0 MEMORY_TARGET=0 SGA_TARGET=0 PGA_AGGREGATE_TARGET=500m Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)? (Choose three.) LOG_BUFFER SORT_AREA_SIZE JAVA_POOL_SIZE STREAMS_POOL_SIZE DB_16K_CACHE_SZIE DB_KEEP_CACHE_SIZE 1,5,6 MC edit delete
41 1Z0-062 You have installed two 64G flash devices to support the Database Smart Flash Cache feature on your database server that is running on Oracle Linux. You have set the DB_SMART_FLASH_FILE parameter: DB_FLASH_CACHE_FILE= ‘/dev/flash_device_1 ‘,’ /dev/flash_device_2’ How should the DB_FLASH_CACHE_SIZE be configured to use both devices? Set DB_FLASH_CACHE_ZISE = 64G. Set DB_FLASH_CACHE_ZISE = 64G, 64G Set DB_FLASH_CACHE_ZISE = 128G. DB_FLASH_CACHE_SIZE is automatically configured by the instance at startup. 2 SC edit delete
40 1Z0-062 What is the effect of specifying the "ENABLE PLUGGABLE DATABASE" clause in a "CREATE DATABASE” statement? It will create a multitenant container database (CDB) with only the root opened. It will create a CDB with root opened and seed read only. It will create a CDB with root and seed opened and one PDB mounted It will create a CDB that must be plugged into an existing CDB. It will create a CDB with root opened and seed mounted. 2 SC edit delete
39 1Z0-062 You created a new database using the "create database" statement without specifying the "ENABLE PLUGGABLE" clause. What are two effects of not using the "ENABLE PLUGGABLE database" clause? (Choose two.) The database is created as a non-CDB and can never contain a PDB. The database is treated as a PDB and must be plugged into an existing multitenant container database (CDB). The database is created as a non-CDB and can never be plugged into a CDB The database is created as a non-CDB but can be plugged into an existing CDB. The database is created as a non-CDB but will become a CDB whenever the first PDB is plugged in. 1,4 MC edit delete
38 1Z0-062 You executed a DROP USER CASCADE on an Oracle 11g release 1 database and immediately realized that you forgot to copy the OCA.EXAM_RESULTS table to the OCP schema. The RECYCLE_BIN enabled before the DROP USER was executed and the OCP user has been granted the FLASHBACK ANY TABLE system privilege. What is the quickest way to recover the contents of the OCA.EXAM_RESULTS table to the OCP schema? Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO OCP.EXAM_RESULTS; connected as SYSTEM. Recover the table using traditional Tablespace Point In Time Recovery. Recover the table using Automated Tablespace Point In Time Recovery. Recovery the table using Database Point In Time Recovery. Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO EXAM_RESULTS; connected as the OCP user 3 SC edit delete
37 1Z0-062 Which two statements are true about variable extent size support for large ASM files? (Choose two.) The metadata used to track extents in SGA is reduced. Rebalance operations are completed faster than with a fixed extent size An ASM Instance automatically allocates an appropriate extent size. Resync operations are completed faster when a disk comes online after being taken offline. Performance improves in a stretch cluster configuration by reading from a local copy of an extent. 1,3 MC edit delete
36 1Z0-062 You create a new pluggable database, HR_PDB, from the seed database. Which three tablespaces are created by default in HR_PDB? (Choose three.) SYSTEM SYSAUX EXAMPLE UNDO TEMP USERS 1,2,5 MC edit delete
35 1Z0-062 Which three statements are true about adaptive SQL plan management? (Choose three.) It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans. The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline. It adds new, bettor plans automatically as fixed plans to the baseline. The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans. The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated. 1,4,5 MC edit delete
34 1Z0-062 You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report? (Choose three.) It detects any configuration change that caused a performance difference in both time periods. It identifies any workload change that caused a performance difference in both time periods. It detects the top wait events causing performance degradation. It shows the resource usage for CPU, memory, and I/O in both time periods. It shows the difference in the size of memory pools in both time periods. It gives information about statistics collection in both time period 1,2,4 MC edit delete
33 1Z0-062 An administrator account is granted the CREATE SESSION and SET CONTAINER system privileges. A multitenant container database (CDB) instant has the following parameter set: THREADED_EXECUTION = FALSE Which four statements are true about this administrator establishing connections to root in a CDB that has been opened in read only mode? (Choose four.) You can connect as a common user by using the connect statement. You can connect as a local user by using the connect statement. You can connect by using easy connect. You can connect by using OS authentication. You can connect by using a Net Service name. You can connect as a local user by using the SET CONTAINER statement. 1,3,4,5 MC edit delete
32 1Z0-062 Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this? Database replay SQL Tuning Advisor SQL Access Advisor SQL Performance Analyzer Automatic Workload Repository compare reports 4 SC edit delete
31 1Z0-062 You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB). The characteristics of the non-CDB are as follows: – Version: Oracle Database 11g Release 2 (11.2.0.2.0) 64-bit – Character set: AL32UTF8 – National character set: AL16UTF16 – O/S: Oracle Linux 6 64-bit The characteristics of the CDB are as follows: – Version: Oracle Database 12c Release 1 64-bit – Character Set: AL32UTF8 – National character set: AL16UTF16 – O/S: Oracle Linux 6 64-bit Which technique should you use to minimize down time while plugging this non-CDB into the CDB? Transportable database Transportable tablespace Data Pump full export/import The DBMS_PDB package RMAN 2 SC edit delete
30 1Z0-062 You conned using SQL Plus to the root container of a multitenant container database (CDB) with SYSDBA privilege. The CDB has several pluggable databases (PDBs) open in the read/write mode. There are ongoing transactions in both the CDB and PDBs. What happens alter issuing the SHUTDOWN TRANSACTIONAL statement? The shutdown proceeds immediately. The shutdown proceeds as soon as all transactions in the PDBs are either committed or rolled hack. The shutdown proceeds as soon as all transactions in the CDB are either committed or rolled back. The shutdown proceeds as soon as all transactions in both the CDB and PDBs are either committed or rolled back. The statement results in an error because there are open PDBs. 2 SC edit delete
29 1Z0-062 An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out? Configure the KEEP buffer pool and alter the table with the corresponding storage clause. Increase the database buffer cache size. Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause. Configure Automata Shared Memory Management. Configure Automatic Memory Management. 1 SC edit delete
28 1Z0-062 You upgraded your database from pre-12c to a multitenant container database (CDB) containing pluggable databases (PDBs). Examine the query and its output: Q28.PNG Assign the appropriate operating system groups to SYSBACKUP, SYSDG, SYSKM. Grant SYSBACKUP, SYSDG, and SYSKM privileges to the intended users. Re-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege and the FORCE argument set to No. Re-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege, and FORCE arguments set to Yes. Re-create the password file in the Oracle Database 12c format. 2,4 MC edit delete
27 1Z0-062 Which three features work together, to allow a SQL statement to have different cursors for the same statement based on different selectivity ranges? (Choose three.) Bind Variable Peeking SQL Plan Baselines Adaptive Cursor Sharing Bind variable used in a SQL statement Literals in a SQL statement 1,3,4 MC edit delete
26 1Z0-062 Which two statements are true concerning dropping a pluggable database (PDB)? (Choose two.) The PDB must be open in read-only mode. The PDB must be in mount state. The PDB must be unplugged. The PDB data files are always removed from disk. A dropped PDB can never be plugged back into a multitenant container database (CDB). 2,3 MC edit delete
25 1Z0-062 Identify two correct statements about multitenant architectures. (Choose two.) Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration. Multiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources. Multiple CDBs share certain PDB resources. Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server. Patches are always applied at the CDB level. A PDB can have a private undo tablespace. 2, 5 MC edit delete
24 1Z0-062 What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database? (Choose two.) Effectively implements role separation Enables you to take advantage of Oracle Managed Files. Automatically registers the database with Oracle Restart. Helps you to easily upgrade the database from a prior release. Enables the Installation of Grid Infrastructure files on block or raw devices. 1,3 MC edit delete
23 1Z0-062 To implement Automatic Management (AMM), you set the following parameters: Q23.jpg The PGA_AGGREGATE_TARGET parameter is set to zero. The STATISTICS_LEVEL parameter is set to BASIC. Both the SGA_TARGET and MEMORY_TARGET parameters are set. The SGA_MAX_SIZE and SGA_TARGET parameter values are not equal. 2 SC edit delete
22 1Z0-062 You are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace. The table does not have a primary key and is used by an OLTP application. Which technique will move the table and indexes while maintaining the highest level of availability to the application? Oracle Data Pump. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes. Online Table Redefinition. Edition-Based Table Redefinition. 4 SC edit delete
21 1Z0-062 After implementing full Oracle Data Redaction, you change the default value for the NUMBER data type as follows: Q21.PNG Re-enable redaction policies that use FULL data redaction. Re-create redaction policies that use FULL data redaction. Re-connect the sessions that access objects with redaction policies defined on them. Flush the shared pool. Restart the database instance. 5 SC edit delete
20 1Z0-062 Which three statements are true concerning unplugging a pluggable database (PDB)? (Choose three.) The PDB must be open in read only mode. The PDB must be dosed. The unplugged PDB becomes a non-CDB. The unplugged PDB can be plugged into the same multitenant container database (CDB) The unplugged PDB can be plugged into another CDB. The PDB data files are automatically removed from disk. 2,4,5 MC edit delete
19 1Z0-062 Examine this command: Q19.PNG Statistics collection is not done for the CUSTOMERS table when schema stats are gathered. Statistics collection is not done for the CUSTOMERS table when database stats are gathered. Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time. Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics. Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics. 3,4,5 MC edit delete
18 1Z0-062 In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately? Decreasing PCTUSED Decreasing PCTFREE Increasing the number of DBWN process Using Automatic Segment Space Management (ASSM) . Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation 4 SC edit delete
17 1Z0-062 Identify three valid options for adding a pluggable database (PDB) to an existing multitenant container database (CDB). (Choose three.) Use the CREATE PLUGGABLE DATABASE statement to create a PDB using the files from the SEED. Use the CREATE DATABASE . . . ENABLE PLUGGABLE DATABASE statement to provision a PDB by copying file from the SEED. Use the DBMS_PDB package to clone an existing PDB. Use the DBMS_PDB package to plug an Oracle 12c non-CDB database into an existing CDB. Use the DBMS_PDB package to plug an Oracle 11 g Release 2 (11.2.0.3.0) non-CDB database into an existing CDB. 1,3,4 MC edit delete
16 1Z0-062 Which two statements are true? (Choose two.) A role cannot be assigned external authentication. A role can be granted to other roles. A role can contain both system and object privileges. The predefined RESOURCE role includes the UNLIMITED TABLESPACE privilege. All roles are owned by the SYS user. The predefined CONNECT role is always automatically granted to all new users at the time of their creation. 3,4 MC edit delete
15 1Z0-062 You execute the commands: Q15.PNG The create user command fails if any role with the name SIDNEY exists in the database. The user Sidney can connect to the database instance but cannot perform sort operations because no space quota is specified for the temp tablespace. The user Sidney is created but cannot connect to the database instance because no profile is assigned to the user. The user Sidney can connect to the database instance but requires relevant privileges to create objects in the users tablespace. The user Sidney is created and authenticated by the operating system. 1,4 MC edit delete
14 1Z0-062 Examine the memory-related parameters set in the SPFILE of an Oracle database: q14.PNG Only SGA components are sized automatically. . Memory is dynamically re-allocated between the SGA and PGA as needed. The size of the PGA cannot grow automatically beyond 500 MB. The value of the MEMORY_TARGET parameter cannot be changed dynamically 3 SC edit delete
13 1Z0-062 Your database is open and the listener LISTENER is up. You issue the command: Q13.PNG Only sessions based on static listener registrations are disconnected. Existing connections are not disconnected; however, they cannot perform any operations until the listener completes the re-registration of the database instance and service handlers The sessions are not affected and continue to function normally. All the sessions are terminated and active transactions are rolled back. 3 SC edit delete
12 1Z0-062 Which task would you recommend before using the Database Upgrade Assistant (DBUA) to upgrade a single-instance Oracle 11g R2 database to Oracle Database 12c? shutting down the database instance that is being upgraded executing the catctl.pl script to run the upgrade processes in parallel running the Pre-Upgrade Information Tool copying the listener.ora file to the new ORACLE_HOME 3 SC edit delete
11 1Z0-062 Examine the structure of the sales table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled. Q11..PNG Row movement is enabled. Referential integrity constraints for the table are disabled. No queries are running on this table. Extra disk space equivalent to the size of the segment is available in the tablespace. No pending transaction exists on the table. 1 SC edit delete
10 1Z0-062 Which action takes place when a file checkpoint occurs? The checkpoint position is advanced in the checkpoint queue. All buffers for a checkpointed file that were modified before a specific SCN are written to disk by DBWn and the SCN is stored in the control file. The Database Writer process (DBWn) writes all dirty buffers in the buffer cache to data files. The Log Writer process (LGWR) writes all redo entries in the log buffer to online redo log files. 2 SC edit delete
9 1Z0-062 Examine the resources consumed by a database instance whose current Resource Manager plan is displayed. Q9.PNG An attempt to start a new session by a user belonging to DSS_QUERIES fails with an error. An attempt to start a new session by a user belonging to OTHER_GROUPS fails with an error The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management. The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to I/O waits and latch or enqueue contention. A user belonging to the DSS__QUERIES resource consumer group can create a new session but the session will be queued. 3,5 MC edit delete
8 1Z0-062 Which three factors influence the optimizer's choice of an execution plan? (Choose three). the optimizer_mode initialization parameter operating system (OS) statistics cardinality estimates object statistics in the data dictionary fixed baselines 1,3,4 MC edit delete
7 1Z0-062 The HR user receives the following error while inserting data into the sales table: Q7.PNG Altering the data file associated with the USERS tablespace to extend automatically Adding a data file to the USERS tablespace. Changing segment space management for the USERS tablespace to manual Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new tablespace Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value 1,2 MC edit delete
6 1Z0-062 Which three statements are true about a job chain? (Choose three.) It can contain a nested chain of jobs. It can be used to implement dependency-based scheduling. It cannot invoke the same program or nested chain in multiple steps in the chain. It cannot have more than one dependency. It can be executed using event-based or time-based schedules. 1,2,5 MC edit delete
5 1Z0-062 The ORCL database is configured to support shared server mode. You want to ensure that a user connecting remotely to the database instance has a one-to-one ratio between client and server processes. Which connection method guarantees that this requirement is met? connecting by using an external naming method connecting by using the easy connect method creating a service in the database by using the dbms_service.create_service procedure and using this service for creating a local naming service connecting by using the local naming method with the server = dedicated parameter set in the tnsnames.ora file for the net service connecting by using a directory naming method 4 SC edit delete
4 1Z0-062 Which two statements are true about the logical storage structure of an Oracle database? (Choose two.) An extent contains data blocks that are always physically contiguous on disk. An extent contains data blocks that are always physically contiguous on disk. An extent contains data blocks that are always physically contiguous on disk. An extent can span multiple segments. Each data block always corresponds to one operating system block. It is possible to have tablespaces of different block sizes. A data block is the smallest unit of I/O in data files. 4,5 MC edit delete
3 1Z0-062 You plan to create a database by using the Database Configuration Assistant (DBCA), with the following specifications: – Applications will connect to the database via a middle tier. – The number of concurrent user connections will be high. – The database will have mixed workload, with the execution of complex BI queries scheduled at night. Which DBCA option must you choose to create the database? a General Purpose database template with default memory allocation a Data Warehouse database template, with the dedicated server mode option and AMM enabled a General Purpose database template, with the shared server mode option and Automatic Memory Management (AMM) enabled a default database configuration 3 SC edit delete
2 1Z0-062 What happens if a maintenance window closes before a job that collects optimizer statistics completes? The job is terminated and the gathered statistics are not saved. The job is terminated but the gathered statistics are not published. The job continues to run until all statistics are gathered. The job is terminated and statistics for the remaining objects are collected the next time the maintenance window opens. 4 SC edit delete
1 1Z0-062 Examine the parameters for your database instance: Q1.PNG Undo data is written to flashback logs after 1200 seconds. Inactive undo data is retained for 1200 seconds even if subsequent transactions fail due to lack of space in the undo tablespace. You can perform a Flashback Database operation only within the duration of 1200 seconds. An attempt is made to keep inactive undo for 1200 seconds but transactions may overwrite the undo before that time has elapsed. 4 SC edit delete

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