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: Mar 07, 2026

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Question 1

Examine this configuration: 1. CDB1 is a container database. 2. PDB1 and PDB2 are pluggable databases in CDB1. You execute these commands successfully: Which two are true? (Choose two.)

A : PDB1 and PDB2 are in MOUNT state.

B : Redo logs are opened.

C : PDB1 and PDB2 are in READ ONLY state.

D : CDB$ROOT is in MOUNT state.

E : PDB$SEED is in READ ONLY state.

Answer: A,D

Question 2

choose two Which two statements are true about encrypted backups performed by using RMAN?

A : Transparent encryption of backups uses an encryption wallet.

B : Image copy backups can be created by using password encryption.

C : A password encryption of backups uses the password while creating and restoring backups.

D : Encrypted backups can only be written to disk.

E : A database uses the same encryption key for every encrypted backup.

Answer: A,C

Question 3

Choose three. Which three are true about upgrading an application in an application container?

A :

An application root clone gets created automatically.

B :

The upgrade can be performed when connected either to CDB$ROOT or to PDB$SEED.

C :

After an application upgrade, the application container-s PDBs remain synchronized with the existing application root.

D :

The upgrade must be performed when connected to CDB$ROOT.

E :

An application name and version number must be specified to upgrade the application.

F :

After an application upgrade, the application container-s PDBs are automatically synchronized with the application root clone.

Answer: A,C,E

Question 4

T schema owned by the RC12C user. The RCAT11 database contains an Oracle Database version 11g catalog schema owned by the RC11 user in which several databases are registered. Both the databases are open. You execute the RMAN commands: RMAN> CONNECT CATALOG rcl2c/passl2c@catdbl2c RMAN> IMPORT CATALOG rcll/pwdcatll@ractll Which two tasks are performed as part of the import?

A : Databases from the RC12C catalog are implicitly unregistered if the RC11 catalog has registered databases with same name.

B : Recovery catalog is resynchronized with the control files of the registered databases.

C : Imported databases are unregistered from the RC11 catalog.

D : Local and global stored scripts that have the same name as existing scripts in the RC12C catalog are automatically renamed.

E : All databases registered in the RC11 catalog are registered in the RC12C catalog.

Answer: A,D

Question 5

Which two are true about instance recovery? (Choose two.)

A : It is not possible if an archived log is missing.

B : It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.

C : Setting FAST_START_MTTR_TARGET to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.

D : It is performed by the Recovery Writer (RVWR) background process.

E : Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing The log writer to write more frquently, thereby reducing the number of I/Os needed during instance recovery.

F : It is performed automatically while the database remains in MOUNT state. Then the database is opened.

Answer: A,C

Page: 1 / 57

Total 285 Questions | Updated On: Mar 07, 2026

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