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: Nov 26, 2025

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Question 1

Which two are true about RMAN duplexed backup sets? (Choose two.)

A : A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.

B : A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.

C : A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.

D : A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set that is already on disk.

E : A non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set that is already on tape.

F : A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.

Answer: B,D

Question 2

A database is configured in ARCHIVE LOG mode. A full RMAN backup exists but no control file backup to trace has been taken. A media failure has occurred. In which two scenarios is incomplete recovery required? (Choose two.)

A : after losing a SYSAUX tablespace data file

B : after losing all members of an INACTIVE online redo log group

C : after losing all members of the CURRENT online redo log group

D : after losing all copies of the control file

E : after losing an UNDO tablespace that is in use

Answer: C,D

Question 3

Choose the best answer. Examine this configuration:
1. CDB1 is a container database running in ARCHIVELOG mode.
2. Multiple uncommitted transactions are running in CDB1.
3. Redo log groups 1 and 2 are INACTIVE.
4. Redo log group 3 is the CURRENT group
All members of redo log group 3 are lost before it is archived. Examine these possible steps:
1. SHUTDOWN ABORT
2. STARTUP NOMOUNT
3. STARTUP MOUNT
4. ALTER DATABASE MOUNT
5. RESTORE DATABASE
6. RECOVER DATABASE NOREDO
7. RECOVER DATABASE UNTIL AVAILABLE
8. RESTORE ARCHIVELOG ALL
9. ALTER DATABASE OPEN
10. ALTER DATABASE OPEN RESETLOGS
Choose the minimum required steps in the correct order to recover the database.

A : 1,3,5, 6, 9

B : 1,3,5, 7, 10

C : 1,2, 5, 7,4, 10

D : 1,3, 5, 6, 10

E : 1,3,5, 6, 10

F : 1,3,5,8, 6, 10

Answer: B

Question 4

Choose two. Which two are true about an RPM-based Oracle Database installation?

A : It includes the Oracle Preinstallation RPM.

B : From Oracle Database 18c, a single RPM can be used to install only Oracle Database Server for a single instance.

C : It requires an Unbreakable Linux Network (ULN) subscription.

D : It performs a software-only Oracle Database installation.

E : It uses a service configuration script to create a single-instance database as part of the installation.

Answer: B,D

Question 5

Choose three. Your container database, CDB1, is in local undo mode. You successfully execute this command while connected to CDB1: CREATE PLUGGABLE DATABASE pdb1 ADMIN USER pdb1_admin IDENTIFIED BY pdb123 ROLES= (CONNECT) CREATE_FILE_DEST='/u01/app/oracle/oradata/cdb1/pdb1' ; Which three are true about PDB1?

A :

It has the same common users defined as does CDB1.

B :

It has only local roles.

C :

It has the same number of roles as CDB1.

D :

Service PDB1 is created for remote logins to PDB1.

E :

It is in mount state after creation.

F :

It has no local users.

Answer: A,B,D

Page: 1 / 57

Total 285 Questions | Updated On: Nov 26, 2025

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