Free Oracle 1Z0-083 Exam Questions

Become Oracle Certified with updated 1Z0-083 exam questions and correct answers

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Total 285 Questions | Updated On: Apr 14, 2026

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Question 1

Choose three. Which three are true about RMAN archival backups with the RESTORE POINT clause?

A :

They are never considered obsolete by RMAN.

B :

They can optionally be written to a fast recovery area (FRA).

C :

Â All archive logs are retained after an archival backup is taken, until the next archival backup is taken of the same database.

D :

Archive logs are retained if they are necessary to allow the database to be recovered to a consistent state when an archival backup is restored.

E :

The SPFILE is included in the archival backup.

F :

Use of a recovery catalog is always required to support the creation and use of archival backups. G)The ARCHIVAL attribute for a backup overrides the RMAN retention policy.

G :

Answer: A,B,D

Question 2

Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

A : A PDB snapshot is always a full copy of the source PDB.

B : A PDB snapshot is always a sparse copy of the source PDB.

C : A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.

D : A PDB snapshot depends on a storage snapshot which can be stored on any file system.

E : A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.

F : A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.

G : A snapshot copy PDB can be created from a stand-alone clone PDB.

Answer: A,C

Question 3

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

A : It is not possible if an archived log is missing.

B : It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.

C : Setting FAST_START_MTTR_TARGET to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.

D : It is performed by the Recovery Writer (RVWR) background process.

E : Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing The log writer to write more frquently, thereby reducing the number of I/Os needed during instance recovery.

F : It is performed automatically while the database remains in MOUNT state. Then the database is opened.

Answer: A,C

Question 4

Choose two. Which two are true about RMAN persistent configuration settings, administration, and their effects?

A : A DBA must specify either a redundancy retention policy or a recovery window retention policy. B)A target database-s persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.

B : Backups older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.

C : Backups written to the fast recovery area (FRA) that are obsolete based on the redundancy retention policy can be deleted automatically to free space.

D : A target database-s persistent RMAN configuration settings are always stored in the target-s control file

Answer: C,D

Question 5

Choose three. Which three resources are always shared among CDB$ROOT and pluggable databases (PDBs)?

A : the data dictionary in CDB$ROOT

B : the log writer process (LGWR)

C : SYSAUX tablespaces

D : temporary tablespaces

E : the Process Monitor Process (PMON)

F : undo tablespaces

Answer: A,B

Page: 1 / 57

Total 285 Questions | Updated On: Apr 14, 2026

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