Free Access Oracle.1Z1-083.v2022-11-09.q168 Practice Test (Page 6)

Question 21

Examine these queries and their output: After a system crash, an instance restart and an attempted opening of the PDBs result in: Which two are true? (Choose two.)

A.Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.

B.Data file 24 can be recovered while PDB2 is opened.

C.Data file 24 must be recovered while the CDB is opened.

D.Data file 24 cannot be recovered while the CDB is opened.

E.Data file 24 must be recovered while PDB2 is closed.

Question 22

Choose three. Which three are true about Oracle Restart?

A.It is used in both clustered and non-clustered environments.

B.The Server Control (SRVCTL) utility can be used to start and stop Oracle Restart.

C.You can add and remove components from an Oracle Restart configuration with Server Control (SRVCTL) commands.

D.If you shut down a database instance with SQL*Plus, Oracle Restart interprets this as a database failure and attempts to restart the instance.

E.It runs from the Oracle Grid Infrastructure home.

F.It can manage Oracle Database instances, Oracle Net Listeners, and Oracle Automatic Storage Management instances.

Question 23

How do you configure a CDB for local undo mode?

A.Open the CDB instance in upgrade mode. In cdb$root, execute alter database local undo on, and then restart the CDB instance.

B.Open the CDB instance in restricted mode. In cdb$root, execute alter database local undo on. create an undo tablespace in each PDB, and then restart the CDB instance

C.Open the CDB instance in upgrade mode. In each PDB, execute alter database local undo on, create an undo tablespace, and then restart the CDB instance.

D.Open the CDB in read-only mode. In cdb$root, execute alter database local undo on, and then change the CDB to read/write mode.

E.Open the CDB instance in restricted mode. In cdb$root, drop the undo tablespace. Execute alter database local undo on in each PDB, and then restart the CDB instance.

Question 24

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

A.It is part of the DBMS_STATS package.

B.It runs automatically every night by default.

C.It is part of the DBMS_ADVISOR package.

D.It always analyzes all schemas in the database.

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

F.It can be run only manually.

Question 25

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

A.The SBT device should be configured to use parallelism 2 to allow both tape drives to be used simultaneously

B.Any backup written to the SBT device in this configuration can contain a maximum of two backup sets.

C.SBT tape compression and RMAN backup compression should be used in parallel.

D.SBT tape compression can be used even if no RMAN compression is configured.

E.Any backup set written to the SBT device in this configuration can contain a maximum of two backup pieces.

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