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: Feb 11, 2026

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Question 1

Choose two. You want to install Oracle Grid Infrastructure for a Standalone Server using Oracle Universal Installer (OUI). There is no existing Oracle installation on the server. Which two are prerequisites?

A : an operating system user to own this installation

B : the Oracle Inventory group oinstall

C : an operating system account called grid

D : a group called dba

E : the installation of Oracle ASMLIB

Answer: A,B

Question 2

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

Question 3

You plan to install Oracle Grid Infrastructure for a Standalone Server and Oracle Database for the first time on a server. Examine this command and its outcome: Which two are true? (Choose two.)

A : oracle will be an owner of the Oracle Inventory.

B : oracle must be the owner of every Oracle Database installation

C : oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation.

D : oracle will be granted the SYSASM privilege when installing the Oracle Database software.

E : The user account, oracle, and group, oinstall, can be used for all Oracle software installations.

Answer: A,C

Question 4

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 5

Choose three. Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database?

A : DBUA must be launched from the target Oracle Home.

B : Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.

C : A whole database backup must exist before upgrade.

D : The Pre-Upgrade Information Tool script is executed by DBUA.

E : All pluggable databases are automatically upgraded as part of a container database upgrade.

F : The database must be opened in read-only mode.

Answer: A,D

Page: 1 / 57

Total 285 Questions | Updated On: Feb 11, 2026

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