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 22, 2026

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Question 1

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 2

Choose two. Which two are true about a Recovery Manager (RMAN) duplication without a TARGET connection?

A : The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.

B : RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.

C : The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.

D : The UNDO TABLESPACE clause is never required.

E : RMAN 'pushes' the backups of the database to be duplicated over the network to the auxiliary instance.

Answer: A,B

Question 3

Examine the RMAN command: RMAN> RUN { ALLOCATE CHANNEL c1 DEVICE TYPE sbt; ALLOCATE CHANNEL c2 DEVICE TYPE sbt; ALLOCATE CHANNEL c3 DEVICE TYPE sbt; BACKUP INCREMENTAL LEVEL = 0 (DATAFILE 1,4,5 CHANNEL c1) (DATAFILE 2,3,9 CHANNEL c2) (DATAFILE 6,7,8 CHANNEL c3); SQL 'ALTER SYSTEM ARCHIVE LOG CURRENT'; } Which statement is true about the command?

A : It uses multisection backup.

B : It uses parallelization for the backup set.

C : It uses asynchronousI/O for the backup.

D : It creates compressed backup sets.

Answer: B

Question 4

Choose three. Which three are true about upgrading an application in an application container?

A :

An application root clone gets created automatically.

B :

The upgrade can be performed when connected either to CDB$ROOT or to PDB$SEED.

C :

After an application upgrade, the application container-s PDBs remain synchronized with the existing application root.

D :

The upgrade must be performed when connected to CDB$ROOT.

E :

An application name and version number must be specified to upgrade the application.

F :

After an application upgrade, the application container-s PDBs are automatically synchronized with the application root clone.

Answer: A,C,E

Question 5

Examine these actions: 1. Create a new database for a recovery catalog. 2. Create a tablespace with sufficient space in the catalog database for the recovery catalog. 3. Configure ARCHIVE LOG mode for the catalog database. 4. Create a user to own the recovery catalog schema with quota on the tablespace that will contain the catalog. 5. Grant the RECOVERY_CATALOG_OWNER role to the recovery catalog schema owner. 6. Grant the SYSBACKUP privilege to the recovery catalog schema owner. Which are the minimum actions that must be performed before executing the CREATE CATALOG command?

A : 2,4,5,6

B : 1,2,3,4,5,6

C : 1,2,4,5

D : 2,4,5

E : 1,3,4,5

Answer: D

Page: 1 / 57

Total 285 Questions | Updated On: Apr 22, 2026

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