Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)

• A.An Oracle database can be restored from backup files copied using O/S utilities.
• B.Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.
• C.Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.
• D.Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.
• E.Oraclearchive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
• F.Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance bestarted and the dataabse be in the MOUNT state.
• G.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.

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While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance?

• A.Disable FORCE LOGGING for the database.
• B.Enable asynchronous disk I/O.
• C.Increase the level of RMAN multiplexing.
• D.Increase the size of the database buffer cache.
• E.Increase the size of tape I/O buffers.

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Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? (Choose two.)

• A.Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
• B.Space is only reclaimed when there is space pressure in the Fast Recovery Area. (FRA)
• C.Space is always reclaimed proactively before space pressure occurs.
• D.Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
• E.Space might be reclaimed proactively before space pressure occurs.

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Choose three. Which three are true about patchsets?

• A.A base release is not needed to install patchsets.
• B.They can be applied in a rolling fashion for Clusterware and the databases.
• C.They can introduce new features.
• D.They are only released quarterly.
• E.They are installed via OPatch or OPatchAuto.
• F.Installing a patchset is considered an "upgrade."

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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:
# id oracle
uid=54321(oracle) gid=54321(oinstall) groups=54321(oinstall) , 54322(dba) Which two are true?

• A.The user account, oracle, and group, oinstall, can be used for all Oracle software installations.
• B.oracle must be the owner of every Oracle Database installation.
• C.oracle will be an owner of the Oracle Inventory.
• D.oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation.
• E.oracle will be granted the sysasm privilege when installing the Oracle Database software.

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