Free Access Oracle.1Z0-083.v2026-05-24.q248 Practice Test (Page 9)

Question 36

choose two Examine these RMAN commands: RMAN> CONNECT TARGET "sbu@prod AS SYSBACKUP"; RMAN> CONNECT AUXILIARY "sbu@dup_db AS SYSBACKUP"; RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE PASSWORD FILE SECTION SIZE 400M; Which two statements are true about the DUPLICATE command?

A.No catalogued backup of the TARGET is used to duplicate the database.

B.Itsucceeds only if the target database is greater than 400M.

C.It fails because connection to the AUXILIARY instance must be as SYSDBA.

D.It fails because no parallel channels are allocated for the auxiliary database.

E.It succeeds.

Question 37

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

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

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

C.Recovery begins from the beginning of the CURRENT redo log group.

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

E.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.

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

Question 38

Which three are true about actions that can or cannot be performed by users with the SYSBACKUP privilege?
(Choose three.)

A.They can create any table.

B.They can view data from any data dictionary view or dynamic performance view.

C.They cannot create restore points.

D.They can view data from any user-defined tables.

E.They cannot drop tablespaces.

F.They can drop any tablespace.

Question 39

Which two are true about RMAN encryption? (Choose two.)

A.The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command.

B.RMAN can encrypt the Oracle Database password file.

C.RMAN encryption keys are stored in a database keystore.

D.Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.

E.Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.

Question 40

While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)

A.Disable FORCE LOGGING for the database.

B.Enable asynchronous disk I/O.

C.Increase the size of tape I/O buffers.

D.Increase the size of the database buffer cache.

E.Increase the level of RMAN multiplexing.

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Question 36

Question 37

Question 38

Question 39

Question 40

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