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
46 1Z0-083 Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor? (Choose two.) Using the Data Recovery Advisor LISTFAILURE command always requires that the data base for which failures are to be listed is inMOUNT state. A failure can be closed only when it has been repaired. Data Recovery Advisor can be used if a database is closed.
 The Data Recovery Advisor CHANGEFAILURE command can be used only to change failure priorities Data Recovery Advisor can proactively check for failures. 4,5 MC edit delete
45 1Z0-083 Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.) cloning are mote container data base in inter active mode
 cloning are mote pluggable database in silent mode relocating a remote pluggable database in interactive mode D. relocating a remote container database in silent mode
 cloning are mote container database in silent mode relocating are mote pluggable database in silent mode relocating a remote container database in interactive mode 3,5,6 MC edit delete
44 1Z0-083 You have configured RMAN SBT channels to write backups to media. You then take an RMAN backup by using this command: Which three are true? (Choose three.) 44-quedb2.png There store point is a label for the system change number(SCN) that will be saved two years after the archival backup was taken. The data file backups in the self-contained archive backup are not considered obsolete for two years regard less of the retention policy. All archive logs created after this backup are kept for two years. The SPFILE is included in the self-contaied archival backup. The control file is included in the self-contained archival backup. There store point is a label for the system change number(SCN) before the archival backup was taken 3,4,5 MC edit delete
43 1Z0-083 Which three are true in Oracle 19c and later releases? (Choose three.) If the password file location changes, then the new location is used automatically by the Oracle Server. Schema Only accounts can be granted administrator privileges. All the Oracle-supplied accounts are Schema Only accounts. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user. Unified Auditing can be configured to audit only events that are issued directly by an audited user 2,3,4 MC edit delete
42 1Z0-083 Which two are true about RMAN encryption? (Choose two.) RMAN encryption keys are stored in a database key store RMAN can encrypt the Oracle Database password file. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available The SETENCRYPTION command overrides encryption settings specified by the CONFIGUREENCRYPTION command. Password encryption can be persistently configured using the CONFIGUREENCRYPTION command 3,4 MC edit delete
41 1Z0-083 Which three are true about Automatic Workload Repository (AWR)? (Choose three.) By default, AWR snapshots are taken every 60 minutes. Its collection level is determined by the value of the STATISTICS_LEVEL database parameter By default, AWR snapshots are retained for 7 days The taking of AWR snapshots can be disabled. AWR data is stored in the SYSTEM table space. 1,2,4 MC edit delete
40 1Z0-083 Which three are true? (Choose three.) Virtual Private Database (VPD) policies on objects in an application root are automatically synchronized with all application PDB scontained in the application container. Application-common TSDP policies are always container specific. Application-common Transparent Security Data Protection (TSDP)policies can be created only with in an application install/patch BEGIN-ENDblock. Application-common Oracle Label Security(OLS) policies can not be created in an application root out side an install/patch BEGIN-ENDblock. Fine-grained auditing(FGA) policies in an application root are automatically synchronized to all application PDBs contained in the application container. Application-common OLS policies can be created in an application root inside an install/patch BEGIN-END block. Unified auditing can be automatically synchronized to all application PDBs in an application container 1,3,7 MC edit delete
39 1Z0-083 Examine this configuration: 39-quedb2.png The ORCL database, the Oracle ASM instances, the+DATA and+FRA disk groups, and the LISTENER are started. Only the ORCL database instance is started. Only the ORCL database and the ASM instances are started. Only the ORCL database instance, the Oracle ASM instance, and the+DATA and+FRA disk groups are started Only the ORCL database instance and the+DATA and+FRA disk groups are started. 4 SC edit delete
38 1Z0-083 Which two are true about Oracle instance recovery? (Choose three.) Recovery begins from the beginning of the CURRENT redo log group. Recovery begins from the lastcheck point position that was calculated by the Database Writer before instance failure. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened. Recovery begins from the last check point position that was recorded in the control file by the check point process(CKPT). Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions. 2,4,6 MC edit delete
37 1Z0-083 Which three methods can be used for heap table data migration after upgrading a database? (Choose three.) using Database Replay using SQL Developer using Oracle Data Pump using operating system file copy utilities using Database Upgrade Assistant using the CREATE TABLE AS SELECT SQL statement 4,5,6 MC edit delete
36 1Z0-083 A container database (CDB) contains two pluggable databases PDB1 and PDB2. The LOCAL_UNDO_ENABLED database property is set to FALSE in the CDB.
Data file 24 of PDB2 was deleted and you need to restore and recover it. The only RMAN backup that exists was created with the BACKUP DATABASE command while connected to CDB$ROOT. Which three are true? (Choose three.) Datafile 24 can be recovered only while connected to PDB2.
 Datafile24 can be restored and recovered while connected to CDB$ROOT. Datafile24 can be restored only while connected to CDB$ROOT.
 Datafile24 can be restored only while connected to PDB2.
 Datafile24 can be recovered while connected to PDB2.
 Datafile24 can be recovered while connected to CDB$ROOT. 2,4,6 MC edit delete
35 1Z0-083 Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.) The number of table rows is considered whene valuating the cost of accessing a table using an index. Index balanced B*Tree height is considered when evaluating the cost of using an index The Statistics Advisor can help recommend the best way to gather statistics Statistics collected using DBMS_STATS always yield the best optimizer result The Statistics Advisor generates actions for all recommendations 3,4 MC edit delete
34 1Z0-083 Which two are true about instance recovery? (Choose two.) It is not possible if an archived log is missing It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered Setting FAST_START_MTTR_TARGET to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery It is performed by the Recovery Writer (RVWR) background process Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing the log writer to write more frquently , there by reducing the number of I/Os needed during instance recovery It is performed automatically while the database remains in MOUNT state. Then the database is opened 5,6 MC edit delete
33 1Z0-083 A database is configured in ARCHIVELOG mode.A full RMAN backup exists but no control file backup to trace has been taken. A media failure has occurred.In which two scenarios is incomplete recovery required? (Choose two.) after losing a SYSAUX table space data file
 after losing all members of an INACTIVE online redo log group after losing all members of the CURRENT online redo log group after losing all copies of the control file
 after losing an UNDO table space that is in use 2,4 MC edit delete
32 1Z0-083 Which three are true about upgrading Oracle Grid Infrastructure? (Choose three.) A direct upgrade can be performed only from the immediately preceding Oracle Grid Infrastructure version. The newer version is installed in a separate Oracle Grid Infrastructure home on the same server as the existing version An existing Oracle base can be used. Existing Oracle Database instances must be shutdown before starting the upgrade. The upgrade process will automatically install all mandatory patches for the current version of Oracle Grid Infrastructure. Only the grid user can perform the upgrade 4,5,6 MC edit delete
31 1Z0-083 Examine this configuration: 31-quedb2.png PDB1 and PDB2 are in MOUNT state. Redo logs are opened. PDB1 and PDB2 are in READ ONLY state. CDB$ROOT is in MOUNT state. PDB$SEED is in READ ONLY state. 2,5 MC edit delete
30 1Z0-083 Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.) Backingup a database in NOARCHIVELOG mode usingO/S utilities requires that the database instance be started and the data base be in the MOUNT state. Backing up a database in ARCHIVELOG mode usingO/S utilities requires that the database instance be started and the database be inMOUNT state. An Oracle database can be restored from backup files copied using O/S utilities Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES Backingup a database in NOARCHIVELOG mode usingO/S utilities requires that the database instance be shutdown. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
 Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state. 2,4,5 MC edit delete
29 1Z0-083 Your container database, CDB1, has an application container, HR_ROOT, with an application PDB, HR_PDB1.You have the required privilege to clone HR_PDB1 to container database CDB2, which does not contain HR_ROOT. Which two are always true? (Choose two.) CDB1 and CDB2 must be in shared undo mode.
 A common user must exist in CDB2 with the CREATE PLUGGABLE DATABASE privilege All transactions in HR_PDB1 of CDB1 must commit before the cloning process starts Cloning HR_ROOT automatically clones HR_PDB1. The HR_PDB1 clone created in CDB2 will be in mount state when cloning ends 2,4 MC edit delete
28 1Z0-083 Your SALES_ROOT application container has two application PDBs. 28-quedb2.png The CONTAINERS clause can not be used in queries on the REVENUE table.
 The REVENUE table must be alist-partitioned table.
 The MAPTABLE tables defines a logical partition key on a commonly used column for the REVENUE table. The MAPTABLE table is a metadata-linked table.
 A container map exists for the REVENUE table, but is not enabled.
 The REVENUE table partitions are not pruned across the PDBs automatically. 3,5 MC edit delete
27 1Z0-083 Which two are true about Oracle Database Configuration Assistant (DBCA) templates? (Choose two.) The General Purpose of Transaction Processing templates are most suitable when concurrency and recoverability are key criteria Oracle DBCA templates can store only logical structure and not database files.
 New templates can only be created by modifying an existing user-created template. The Data Warehouse template is most suitable when transaction response time is the key criterion. Oracle DBCA templates can be used to create new databases and duplicate existing databases. 1,5 MC edit delete
26 1Z0-083 Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.) APDB snap shot is always a full copy of the source PDB. APDB snap shot is always a sparse copy of the source PDB. A snapshot copy PDB depends on a storages nap shot which can only be stored on specific file systems. A PDB snapshot depends on a storage snapshot which can be stored on any file system. APDB snap shot depends on a storage snap shot which can only be stored on specific file systems. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system. A snapshot copy PDB can be created from a stand-alone clone PDB. 1,5 MC edit delete
25 1Z0-083 You plan to install Oracle Grid Infrastructure for a Standalone Server and Oracle Database for the first time on a server. Examine this command and its outcome:Which two are true? (Choose two.) 25-quedb2.png oracle will be an owner of the Oracle Inventory. oracle must be the owner of every Oracle Database installation. oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation. oracle will be granted the SYSASM privilege when installing the Oracle Database software. The user account, oracle, and group, oinstall, can be used for all Oracle software installations. 3,4 MC edit delete
24 1Z0-083 Which two are facets of performance planning that should always be considered or implemented for an Oracle Database environment? (Choose two.) defining primary keys for all tables to speed up all queries using check constraints to speed up updates defining foreign keys for all tables to speed up joins the physical data model the configuration of storage arrays 1,5 MC edit delete
23 1Z0-083 A database is configured in ARCHIVELOG mode.Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred.In which two scenarios is complete recovery possible? (Choose two.) when any archived log from, before, or after the most recent backup is corrupt. after losing all copies of the control file after losing an archived log from after the most recent backup after losing an archived log from before the most recent backup after losing the SYSTEM table space 1,4 MC edit delete
22 1Z0-083 Which three are true about managing memory components in an Oracle database instance? (Choose three.) With Automatic Shared Memory Management, the data base instance can increase the Large Pool size by reducing the Shared Pool size. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart. Automatic Memory Management must be used together with locking the System Global Area into physical memory. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size. OnLineTransactionProcessingsystemsoftenuselessProgramGlobalAreathanDecisionSupportSystems. OnLine Transaction Processing systems often useless Program Global Area than Decision Support Systems. 1,5,6 MC edit delete
21 1Z0-083 Which two are true about Recovery Manager (RMAN) diagnostic message output? (Choose two.) Media Management messages for SBT devices are always written to sbtio.log. RMAN error stacks should be read from the bottom up as that is the order in which errors are generated. RMAN error stacks should be read from the top down as that is the order in which errors are generated. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output The RMAN LOG commandline clause causes output issued during RMAN command compilation to be written to a log file only. Media Management messages for SBT devices are written to an Oracle trace file 5,6 MC edit delete
20 1Z0-083 Examine the command for creating pluggable database PDB2 in container database CDB2. 20-quedb2.png Add the FILE_NAME_CONVERT clause to the statement and set the PDB_FILE_NAME_CONVERT parameter. Add only the CREATE_FILE_DEST clause to the statement Set only the PDB_FILE_NAME_CONVERT parameter Set the PDB_FILE_NAME_CONVERT parameter and enable OMF Enable only OMF Add the FILE_NAME_CONVERT clause to the statement and enable Oracle Managed Files (OMF) 2,4,5 MC edit delete
19 1Z0-083 Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON)background process? (Choose three.) ADDM can recommend shrinking the buffer cache. ADDM can recommend extending the buffer cache. By default, MMON creates an AWR snapshot every 30 minutes. ADDM performs its analysis only when a DBA requests it. By default, AWR snapshots are automatically purged after eight days. AWR snapshots must be deleted when no longer required by ADDM. 1,5,6 MC edit delete
18 1Z0-083 Examine this configuration: 18-quedb2.png Uncommitted transactions in PDB1 have been rolled back. PDB1 is closed. Uncommitted transactions in CDB1 and PDB1 have been rolled back. CDB1 is shut down. CDB1 is in MOUNT state 2,5 MC edit delete
17 1Z0-083 Which three are true about an application seed pluggable database (PDB)? (Choose three.) It is automatically synchronized with its application root PDB when an application is upgraded. It cannot be added to an application container after the application container has already been created. A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes. It is automatically synchronized with its application root PDB when an application is installed. It cannot be dropped from its application container. A new application PDB created by cloning an application seed PDB can have an up-to-date version of the application installed after cloning completes. It is not required in an application container. 4,6,7 SC edit delete
16 1Z0-083 Which two are true about Oracle Flashback features? (Choose two.) FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files. FLASHBACK TABLE can undrop a column. FLASHBACK DROP can undrop an index when undropping a table. After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is some times rolled forward using redo logs. 1,2 MC edit delete
15 1Z0-083 Which three are true about Optimizer Statistics Advisor? (Choose three.) It can be run only manually. It is part of the DBMS_ADVISOR package. It can recommend changes to improve the statistics gathering process. It always analyzes all schemas in the database. It runs automatically every night by default. It is part of the DBMS_STATS package. 3,4,6 MC edit delete
14 1Z0-083 Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.) A target database’s persistent RMAN configuration settings are always stored in the target’s control file Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space. Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space. The RMAN SHOW ALL command displays only settings with non-default values. A target database’s persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog. The V$RMAN_CONFIGURATION view displays only settings with values that have been modified. A DBA must specify either a redundancy retention policy or a recovery window retention policy. 1,2,6 MC edit delete
13 1Z0-083 Automatic Shared Memory Management is disabled for one of your database instances.Some SQL statements perform poorly due to excessive hard parse activity, thereby degrading performance. What would be your next step? Run the SQL Access Advisor. Run the Memory Advisor for the shared pool. Run the SQL Tunning Advisor. Run the Memory Advisor for the Program Global Area. Run the Memory Advisor for the System Global Area. 2 SC edit delete
12 1Z0-083 Which two are true about the execution of operating system scripts starting from Oracle Database 19c? (Choose two.) orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials. root.sh can be executed automatically by the Database Installer only if it is provided with root credentials. The sudo password can be specified in a response file. root.sh can be executed automatically by the Database installer only by using sudo credentials. The sudo password must be specified in a response file. The root password cannot be specified in a response file. 1,6 MC edit delete
11 1Z0-083 Examine this output: 11-quedb2.png Any PDB not specified in the plan will be unable to execute statements in parallel. PDB3 can use all available parallel execution processes at times. PDB1 is always limited to 40% of the available system resources regardless of demand. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand. 1,5 MC edit delete
10 1Z0-083 Which two are true about SQL Performance Analyzer (SPA)? (Choose two.) It is integrated with the SQL Access Advisor. It predicts the impact of system changes on SQL workload response time. It provides before and after execution statistics for each SQL statement in the analysis task It offers fine-grained analysis of all the SQL statements in the analysis task as a group. SQL statements that were originally run concurrently are run concurrently by SPA. 2,4 MC edit delete
9 1Z0-083 Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.) After the change, only a common user with the required privilege can create an undo table space in CDB&ROOT. Any new PDB and existing PDBs are automatically configured to use the default undo table space in CDB$ROOT. After the change, only one undo table space can exist in CDB$ROOT. After the change ,any user with the required privilege can create an undo table space in the PDBs. Undo table spaces existing in PDBs must be dropped before the change. After the change, each existing PDB has to be reopened for the new undo mode to take effect. 1,4 MC edit delete
8 1Z0-083 A container database called CDB1 is OMF-enabled. 08-quedb2.png PDB1 data files already exist in the correct location. DBMS_PDB.CHECK_PLUG_COMPATIBILITY must be run in CDB1 before executing the command. PDB_FILE_NAME_CONVERT must be set before executing the command. /u01/app/oracle/oradata/pdb1.xml does not contain the current locations of data files for PDB1. PDB1 must be dropped from CDB1. 3,4 MC edit delete
7 1Z0-083 Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.) Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance. A connection to an auxiliary instance is always required. A subset of the target database can be duplicated. A new DBID is always created for the duplicated database. A connection to the recovery catalog instance is always required. A backup of the target database is always required. Duplication can be done by having the target database instance push copies to the auxiliary database instance. A connection to the target database instance is always required. 1,2,6,7 SC edit delete
6 1Z0-083 Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.) By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group. The Oracle Grid Infrastructure installation must be owned by the grid user.
 The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.
 The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database. 5,6 MC edit delete
5 1Z0-083 Which three are located by using environment variables? (Choose three.) the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files. the location of Oracle Net Services configuration files the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup default directories for temporary files used by temporary tablespaces the temporary disk space used by Oracle Installer during installation the maximum number of database files that can be opened by a database instance 2,4,6 MC edit delete
4 1Z0-083 Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.) It analyzes a period of time corresponding to the 12 hours of activity. It runs automatically after each AWR snapshot. A DBA can run it manually. Results are written to the alert log. It analyzes a period of time corresponding to the last day of activity. 2,4 MC edit delete
3 1Z0-083 Which two are true about common objects? They can be created only in CDB$ROOT. They can be only metadata-linked in an application container. They can exist in user-defined schemas only in application containers. They can exist in CDB$ROOT and an application root. They can be extended data-linked in CDB$ROOT. They can be created only in an application root. 5,6 MC edit delete
2 1Z0-083 Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx-preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met creating the oracle OS user creating the OSDBA (dba) group creating thte oraInventory (oinstall) group creating the grid OS user configuring the OS for Oracle Automatic Storage Management shared storage access 3,4,6 SC edit delete
1 1Z0-083 Which three are true about requirements for various FLASHBACK operations? FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked. FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time. FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time. 1,2,3 MC edit delete

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