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 02, 2026

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Question 1

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 2

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

Question 3

Which two are true about the execution of operating system scripts starting from Oracle Database 19c? (Choose two.)

A : orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.

B : root.sh can be executed automatically by the Database Installer only if it is provided with root credentials.

C : The sudo password can be specified in a response file.

D : root.sh can be executed automatically by the Database installer only by using sudo credentials

E : The sudo password must be specified in a response file.

F : The root password cannot be specified in a response file.

Answer: A

Question 4

You are working on an Oracle Database 19c database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true? (Choose two.)

A : Flashback logs are not archived.

B : Flashback logs are maintained in redo log files.

C : Flashback logs are maintained in the Flash Recovery Area.

D : Flashback logs are used to maintain Flashback Database related errors.

E : Flashback logs need to be cleared manually after you disable Flashback Database.

Answer: A,C

Question 5

Which two are true about Oracle Flashback features? (Choose two.)

A : FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVE D REDO LOG files.

B : FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVE D REDO LOG files.

C : FLASHBACK TABLE can undrop a column.

D : FLASHBACK DROP can undrop an index when undropping a table.

E : After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.

Answer: A,D

Page: 1 / 57

Total 285 Questions | Updated On: Apr 02, 2026

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