Free Oracle 1Z0-083 Exam Questions

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

Page: 1 / 57

Total 285 Questions | Updated On: Feb 11, 2026

Add To Cart

Question 1

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

Question 2

You have configured RMAN SBT channels to write backups to medi
a. You then take an RMAN backup by using this command: Which three are true? (Choose three.)

A : The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.

B : The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.

C : All archive logs created after this backup are kept for two years.

D : The SPFILE is included in the self-contaied archival backup.

E : The control file is included in the self-contained archival backup.

F : The restore point is a label for the system change number (SCN) before the archival backup was taken.

Answer: A,B,D

Question 3

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 4

Examine this configuration: While CDB1 is open, '/u02/app/oracle/fast_recover_area/cdb1/CDB1/ controlfile02.ctl'is accidentally deleted. To recover from this critical failure, you execute these commands:
What will be the outcome?

A : It will create '$ORACLE_HOME/dbs/cdb1/CDB1/controlfile02.ctl'

B : It will create '/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl'.

C : It will re-create '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl'

D : It will create '/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl'.

E : It will fail because there is no autobackup of the controlfiles.

Answer: C

Question 5

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

Page: 1 / 57

Total 285 Questions | Updated On: Feb 11, 2026

Add To Cart