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: Dec 17, 2025

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Question 1

Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

A : A PDB snapshot is always a full copy of the source PDB.

B : A PDB snapshot is always a sparse copy of the source PDB.

C : A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.

D : A PDB snapshot depends on a storage snapshot which can be stored on any file system.

E : A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.

F : A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.

G : A snapshot copy PDB can be created from a stand-alone clone PDB.

Answer: A,C

Question 2

Choose the best answer. SQL Performance Analyzer (SPA) has reported several regressed SQL statements for one of your databases. Which action could help in the performance management of these regressed SQL statements?

A : Create SQL plan directives for each of the regressed statements.

B : Use The SQL Tuning Advisor for each of the regressed statements.

C : Create an adaptive execution plan for each of the regressed statements

D : Use the SQL Access Advisor for each of the regressed statements.

Answer: B

Question 3

choose two You take your database backups by using the RMAN media management interface (MMI). Which two are true about the use of the RMAN MMI?

A :

Integration with Third-Party Media Managers

B :

Use of SBT (Sun Business Talk) Interface

C :

Channel Allocation

D :

Requires Configuration

E :

Vendor-Specific Modules

Answer: A,D

Question 4

Choose two. Which two are true about Lockdown profiles in a container database (CDB) and its pluggable databases (PDBs)?

A : A Lockdown profile created from a base Lockdown profile is always automatically modified if the profile on which it is based is modified.

B : A PDB Lockdown profile can be created in an application root.

C : A Lockdown profile created from a base Lockdown profile is never automatically modified if the profile on which it is based is modified.

D : A PDB Lockdown profile can be created in a regular PDB.

E : A PDB Lockdown profile can be created in CDB$ROOT .

Answer: A,B

Question 5

Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A : After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.

B : Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT

C : After the change, only one undo tablespace can exist in CDB$ROOT.

D : After the change, any user with the required privilege can create an undo tablespace in the PDBs.

E : Undo tablespaces existing in PDBs must be dropped before the change.

F : After the change, each existing PDB has to be reopened for the new undo mode to take effect.

Answer: A,B

Page: 1 / 57

Total 285 Questions | Updated On: Dec 17, 2025

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