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? (Choose two.)

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

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

• A.A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.
• B.A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.
• C.A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.
• D.A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set that is already on disk.
• E.A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.
• F.A non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set that is already on tape.

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choose three Which three are true about unified auditing in full mode?

• A.The unified audit trail is written to a read-only external file.
• B.Audit records are created for COMMIT, ROLLBACK, and SAVEPOINT statements.
• C.Audit records are created for SYS.
• D.Audit records are created for non-sys users.
• E.The unified audit trail is written to a read-only table.

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choose two Which two are benefits of unified auditing in full mode?

• A.Pre 12c audit data is written to the traditional locations and new 12c audit data is written to the unified location.
• B.The audit trail is in a single format.
• C.The audit trail is read-only.
• D.All audit data is written to both the traditional locations and to the unified location.
• E.The audit trail uses less space.

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Which two are true about RMAN backups when using a media manager to write backups to tape when there are only two tape drives? (Choose two.)

• A.SBT tape compression and RMAN backup compression should be used in parallel.
• B.The SBT device should be configured to use PARALLELISM 2 to allow both tape drive to be used simultaneously.
• C.Any backup written to the SBT device in this configuration can contain a maximum of two backup sets.
• D.Any backup set written to the SBT device in this configuration can contain a maximum of two backup pieces.
• E.SBT tape compression can be used even if no RMAN compression is configured.

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