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: Mar 21, 2026

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Question 1

choose one You take regular backups of one of your production databases by using RMAN with a recovery catalog. You have added two new tablespaces to this database which must be included in future backups. Which process occurs which allows the new backups to contain the new datafiles?

A : The target database control file is synchronized from the recovery catalog with a partial resync at the next backup.

B : The recovery catalog is synchronized from the target database control file with a full resync at the next backup.

C : The target database control file is synchronized from the recovery catalog with a full resync at the next backup.

D : The recovery catalog is synchronized from the target database control file with a partial resync at the next backup.

Answer: B

Question 2

Choose the best answer. Which should be tuned first when doing a performance tuning exercise for an Oracle Database environment?

A :

log writer performance

B :

database writer performance

C :

general operating system health

D :

SQL statements

E :

database instance memory management and sizes

Answer: C

Question 3

Which two are true about creating RMAN backups for an Oracle container database?

A : Online Redo Log backups can be created while connected to CDB$ROOT

B : Control file backups can be created while connected to CDB$ROOT.

C : The BACKUP TABLESPACE command can back up a pDB tablespace even if RMAN is connected to CDB$ROOT.

D : Archived Redo Log backups can be created while connected to PDB

E : Control file backups can not be created while connected to a PDB

Answer: A,B

Question 4

Choose three. Which three are true about using an RMAN Recovery Catalog with a pluggable database (PDB) target connection in Oracle Database 19c and later releases?

A : The base catalog owner must give the Virtual Private Catalog access to metadata for one or more PDBs.

B : The target PDB must be registered in both the base catalog and the Virtual Private Catalog.

C : The base catalog must be used by RMAN when performing point-in-time recovery for the PDB registered in the Virtual Private Catalog

D : The base catalog must be enabled for Virtual Private Catalog use.

E : The target PDB must be registered in a Virtual Private Catalog.

F : The target PDB must be registered in a base catalog.

Answer: A,C,D

Question 5

Choose three. In a single-instance, multitenant container database (CDB), which three are only ever defined in or part of CDB$ROOT?

A : redo logs

B : control files

C : all data dictionary metadata

D : user-defined PL/SQL packages

E : temporary tablespaces

F : mandatory Oracle-supplied PL/SQL packages

G : undo tablespaces

Answer: A,B,C

Page: 1 / 57

Total 285 Questions | Updated On: Mar 21, 2026

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