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 26, 2026

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Question 1

Choose three. Which three resources are always shared among CDB$ROOT and pluggable databases (PDBs)?

A : the data dictionary in CDB$ROOT

B : the log writer process (LGWR)

C : SYSAUX tablespaces

D : temporary tablespaces

E : the Process Monitor Process (PMON)

F : undo tablespaces

Answer: A,B

Question 2

Choose two. Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?

A : Data Recovery Advisor can proactively check for failures.

B : Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.

C : ata Recovery Advisor can be used if a database is in the NOMOUNT state.

D : A failure can be closed only if the database is in MOUNT state.

E : Data Recovery Advisor can be used if a database is closed.

Answer: A,B

Question 3

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

A : Recovery begins from the beginning of the CURRENT redo log group.

B : Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.

C : Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

D : Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

E : Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

F : Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

Answer: A

Question 4

choose two Which two are true about RMAN image copies?

A : They can only be written to disk.

B : They can be encrypted using Transparent Data Encryption (TDE).

C : They can be used as a level 0 incremental backup.

D : They can be used as a level 1 incremental backup.

E : They are the only backup option available for databases in NOARCHIVELOG mode.

Answer: A,C

Question 5

Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

A : It recompiles all stored PL/SQL code by using utlrp.sql.

B : It empties the RECYCLE BIN.

C : It performs prerequisite checks to verify if the Oracle database is ready for upgrade.

D : It sets all user tablespaces to ''read-only'' before starting the upgrade.

E : It removes the AUDSYS schema and the AUDIT_ADMIN and AUDIT_VIEWER roles

F : It increases tablespace size, if required, to meet upgrade requirements.

Answer: A,B,C

Page: 1 / 57

Total 285 Questions | Updated On: Mar 26, 2026

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