Online Access Free Oracle.1Z0-083.v2022-12-23.q164 Practice Test (Page 6)

1Z0-083 Exam Question 21

Which two are true about Oracle instance recovery? (Choose three.)

A.Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

B.Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.

C.Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

D.Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

E.Recovery begins from the beginning of the CURRENT redo log group.

F.Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

1Z0-083 Exam Question 22

Which three are true about Optimizer Statistics Advisor? (Choose three.)

A.It can be run only manually.

B.It is part of the DBMS_ADVISOR package.

C.It can recommend changes to improve the statistics gathering process.

D.It always analyzes all schemas in the database.

E.It runs automatically every night by default.

F.It is part of the DBMS_STATS package.

1Z0-083 Exam Question 23

Choose two. Which two are true about unplugging an application container from a container database and plugging it into a different container database?

A.It requires only local UNDO mode in the database where the application container will be unplugged.

B.It requires local UNDO mode in both container databases.

C.Plugging the application root into a different CDB plugs in all its application PDBs.

D.Unplugging the application root from a CDB unplugs all its application PDBs.

E.Application PDBs in the application container must be unplugged before the application root is unplugged.

F.The application root of an application container should be plugged into the other CDB before its application PDBs are plugged in.

1Z0-083 Exam Question 24

A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The LOCAL_UNDO_ENABLED database property is set to FALSE in the CDB. Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the BACKUP DATABASE command while connected to CDB$ROOT.
Which three are true? (Choose three.)

A.Data file 24 can be recovered while connected to PDB2.

B.Data file 24 can be recovered only while connected to PDB2.

C.Data file 24 can be restored only while connected to PDB2.

D.Data file 24 can be restored and recovered while connected to CDB$ROOT.

E.Data file 24 can be restored only while connected toCDB$ROOT.

F.Data file 24 can be recovered while connected to CDB$ROOT.

1Z0-083 Exam Question 25

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

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

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

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

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

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

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

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