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Oracle Database Administration II Sample Questions (Q257-Q262):

NEW QUESTION # 257
Which two are true about RMAN duplexed backup sets? (Choose two.)

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

Answer: A,E

NEW QUESTION # 258
Which three statements are true about Flashback Data Archive?

A. While enabling Flashback Data Archive for a table, if no name is provided for Flashback Data Archive, it is enabled using the default Flashback Data Archive.
B. To use Flashback Data Archive, users must have unlimited quota on the Flashback Data Archive tablespace.
C. Flashback Data Archive prevents flashback queries from getting a snapshot-too-old error.
D. A table enabled for Flashback Data Archive cannot be dropped unless Flashback Data Archive is disabled or disassociated first.
E. To enable Flashback Data Archive for a table, it is mandatory to have a default Flashback Data Archive for a database

Answer: A,C,D

NEW QUESTION # 259
Which three are true about Automatic Workload Repository (AWR) snapshots?

A. They are generated if STATISTICS LEVEL is set to ALL.
B. They can be retained forever.
C. They are always created automatically.
D. They are generated if STATISTICS LEVEL is set to TYPICAL.
E. They are always created manually.
F. They are generated if STATISTICS LEVEL is set to BASIC.

Answer: A,C,D

NEW QUESTION # 260
Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans) in a multitenant container database (CDB)?

A. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
B. In a PDB plan, subplans may be used with up to eight consumer groups.
C. If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that PDB.
D. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.
E. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.

Answer: C,D

NEW QUESTION # 261
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. Disable FORCE LOGGING for the database.
D. Enable asynchronous disk I/O.
E. Increase the level of RMAN multiplexing.

Answer: B,E

NEW QUESTION # 262
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