Free Access Oracle.1Z1-083.v2024-01-08.q225 Practice Test (Page 7)

Question 26

Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

A.Reduced physical I/O

B.Reduced logical I/O

C.Improved Serial Execution performance

D.Reduced CPU utilization

E.Reduced virtual memory utilization

Question 27

Which two are true about Recovery Manager (RMAN) diagnostic message output?

A.RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.

B.The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.

C.The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.

D.RMAN error stacks should be read from the top down as that is the order in which errors are generated.

E.Media Management messages for SBT devices are always written to sbtio.log.

F.Media Management messages for SBT devices are written to an Oracle trace file.

Question 28

Examine this configuration:

While CDB1 is open, '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl' is accidentally deleted.
To recover from this critical failure, you execute these commands:

What will be the outcome?

A.It will fail because there is no autobackup of the controlfiles.

B.It will create '/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl'.

C.It will create '$ORACLE_HOME/dbs/cdb1/CDB1/controlfile02.ctl'

D.It will re-create '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl'

E.It will create '/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl'.

Question 29

Choose two. Which two are true about RMAN backups when using a media manager?

A.A media manager is required to create RMAN image copies.

B.A media manager always writes RMAN requested backups to tape.

C.A media manager is required to create RMAN proxy copies.

D.By default, a request for a proxy copy may result in a backup set being created.

E.The media manager layer (MML) routines provided by Oracle support any vendors' media management products.

Question 30

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.Disable FORCE LOGGING for the database.

B.Increase the level of RMAN multiplexing.

C.Enable asynchronous disk I/O.

D.Increase the size of tape I/O buffers.

E.Increase the size of the database buffer cache.

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Question 26

Question 27

Question 28

Question 29

Question 30

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