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 26, 2026

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Question 1

Choose three. Which three are true about the Oracle Optimizer?

A : It considers the filters in WHERE clauses when generating execution plans for SQL statements.

B : It obeys all hints.

C : It considers object statistics when generating execution plans for SQL statements.

D : It updates stale object statistics in the Data Dictionary.

E : It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.

F : It can re-optimize execution plans after previous executions detect suboptimal plans.

Answer: A,D

Question 2

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 3

Choose three. Which three activities are possible for PDBs?

A :

converting an application seed to an application PDB

B :

converting a regular PDB to an application PDB

C :

converting an application PDB to an application root

D :

copying an application container into another application container in the same CDB

E :

copying an application container into another application container in a different CDB

F :

converting an application PDB to an application seed G) converting an application PDB to a regular PDB

Answer: B,D,F

Question 4

In one of your databases, unified auditing is enabled and an SH.SALES table exists. You successfully execute these commands: SQL> CREATE AUDIT POLICY sales_pol ACTIONS select on sh.sales; SQL> AUDIT POLICY sales_pol; Which statement is true about SALES_POL?

A : It is enabled for all users having SELECT privilege on SH.SALES.

B : Only successful queries of SH.SALES are written to the audit trail.

C : It is only enabled for user SH.

D : Audit records are always stored in an external audit file.

Answer: A

Question 5

Choose the best answer. Examine this configuration: 1. CDB1 is a container database. 2.
COMMON_USER_PREFIX is set to an empty string. 3. PDB1 is a pluggable database in CDB1. 4. APP1_ROOT is an application container in CDB1. 5. APP1_PDB1 is an application PDB in APP1_ROOT. You execute these commands: S sqlplus sys/oracle@localhost:1521/cdb1 as sysdba SQL> CREATE ROLE role1 CONTAINER=CURRENT; Which is true?

A : It will return an error because creation of a local role is not allowed in CDB$ROOT.

B : ROLE1 will be created only in CDB$ROOT.

C : It will return an error because common roles must start with C##.

D : ROLE1 will be created only in CDB$ROOT and APP1_ROOT.

E : ROLE1 will be created in CDB$ROOT, PDB1, APP1_ROOT, and APP1_PDB1.

Answer: A

Page: 1 / 57

Total 285 Questions | Updated On: Mar 26, 2026

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