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: Apr 28, 2026

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Question 1

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 2

Which three are true about performing an Oracle Database install on Linux? (Choose three.)

A : The runfixup.sh script can install missing RPMs.

B : The Oracle Preinstallation RPM must be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group

C : It allows you to select the languages supported by the Oracle database server.

D : It can be done before installing Grid Infrastructure for a Standalone Server

E : The Oracle Preinstallation RPM can be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group

F : It can be done after installing Grid Infrastructure for a Standalone Server.

G : The Oracle database administrator must be granted access to the root operating system account to tun root privileged scripts.

Answer: A,D

Question 3

You execute the following piece of code with appropriate privileges: BEGIN DBMS_REDACT.ADD_POLICY ( END; object_schema object_name column_name policy_name function_type expression => 'SCOTT', => 'EMP', => 'SAL', => 'SCOTT_EMP', => DBMS_REDACT.FULL, => 'SYS_CONTEXT (''SYS_SESSION_ROLES'',''MGR'') = ''FALSE'''); END; BEGIN DBMS_REDACT.ADD_POLICY ( object_schema object_name column_name policy_name function_type expression => 'SCOTT', => 'EMP_VW', => 'SAL', => 'SCOTT_EMP_VW', => DBMS_REDACT.NONE, => 'SYS_CONTEXT (''SYS_SESSION_ROLES'',''MGR'') = ''FALSE'''); User SCOTT has been granted the CREATE SESSION privilege and the MGR role. Which two statements are true when a session logged in as SCOTT queries the SAL column in the view and the table?

A : DataisredactedfortheEMP.SALcolumnonlyiftheSCOTTsessiondoesnothavetheMGR role set.

B : DataisredactedforEMP.SALcolumnonlyiftheSCOTTsessionhastheMGRroleset.

C : Data is never redacted for the EMP_VW.SAL column.

D : Data is redacted for the EMP_V.SAL column only if the SCOTT session has the MGR role set.

E : Data is redacted for the EMP_V.SAL column only if the SCOTT session does not have the MGR role set. Correct

Answer: A,C

Question 4

Examine this configuration: 1. CDB1 is an Oracle Database 12c Release 2 database containing pluggable databases PDB$SEED, PDB1, and PDB2. 2. PDB$SEED is open READ ONLY 3. PDB1 is open READ WRITE 4. PDB2 is MOUNTED. 5. ORACLE_HOME is /u01/app/oracle/product/18.1.0/dbhome_1. You execute these commands before upgrading the database to the current release: For which databases will fixup scripts be created?

A : CDB1, PDB$SEED, PDB1, and PDB2

B : PDB$SEED, PDB1, and PDB2 only

C : CDB1 and PDB$SEED only

D : CDB1, PDB1, and PDB2 only

E : CDB1, PDB$SEED, and PDB1 only

Answer: A

Question 5

Choose three. Which three are true about a container database (CDB)?

A : It can be created from a non-CDB.

B : It can contain only one PDB$SEED, which is created when the CDB is created.

C : It can have local users with the same name in different PDBs.

D : It can contain only one Application Container seed, which is created when the Application Container is created.

E : It can be created by cloning an existing CDB.

F : It can have any number of pluggable databases (PDBs) limited only by space availability.

G : It contains predefined common roles in both the root and the seed.

Answer: A,B

Page: 1 / 57

Total 285 Questions | Updated On: Apr 28, 2026

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