Choose three. PDB1 and PDB2 are pluggable databases in CDB1. Examine these commands: $ export ORACLE_SID=CDB1 $ sqlplus / as sysdba SQL> STARTUP ....... Database opened. SQL> SHOW PDBS CON_ID CON_NAME --------------------------------------------------------------------OPEN MODE READ ONLY NO MOUNTED MOUNTED SQL> ALTER PLUGGABLE Pluggable database altered. SQL> ALTER PLUGGABLE DATABASE pdb1 SAVE STATE; Pluggable database altered. SQL> ALTER PLUGGABLE DATABASE pdb1 CLOSE; Pluggable database altered. SQL> ALTER PLUGGABLE A DATABASE pdb2 OPEN; Pluggable database altered. CDB1 is then restarted. Which three are true?

• A.PDB$SEED will be MOUNTED
• B.PDB2 will be MOUNTED.
• C.PDB1 will be MOUNTED.
• D.PDB$SEED will be opened READ ONLY.
• E.PDB1 will be opened READ WRITE.
• F.PDB2 will be opened READ WRITE.

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Which two are true about automatic block repair? (Choose two.)

• A.Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.
• B.Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
• C.Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
• D.It is not possible for media corrupt blocks.
• E.Automatic block repair can repair blocks with no standby database if DB_BLOCK_CHECKING = TRUE.

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Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

• A.All metrics are instance related.
• B.Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
• C.A space usage management alert is automatically cleared after the underlying problem is resolved.
• D.They are generated by SMON when a tablespace is 97% full.
• E.Metrics are statistical counts for a specific unit.
• F.STATISTICS_LEVEL must be set to ALL to generate alerts.

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Which two are true about RMAN encryption? (Choose two.)

• A.RMAN encryption keys are stored in a database keystore.
• B.RMAN can encrypt the Oracle Database password file.
• C.Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
• D.The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command.
• E.Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.

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Which two are true about RMAN duplexed backup sets? (Choose two.)

• A.They can be written only to disk.
• B.They must be written to media.
• C.They can be written to media.
• D.They can be created by using the RMAN CONFIGURE command to specify duplexing before taking a backup.
• E.They can be created only by using the COPIES option of a BACKUP command.

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