Free Access Oracle.1Z0-083.v2026-05-24.q248 Practice Test (Page 5)

Question 16

Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)

A.Flashback logs are automatically purged whenever the value of
DB_FLASHBACK_RETENTION_TARGET is changed.

B.Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGET is set lower than the time they have already been retained.

C.Flashback logs are monitored for being older than the retention period defined in DB_FLASHBACK_RETENTION_TARGET and can be deleted by an administrator written event trigger.

D.Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET before there is space pressure.

E.Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET only after there is space pressure.

Question 17

choose one You take regular backups of one of your production databases by using RMAN with a recovery catalog. You have added two new tablespaces to this database which must be included in future backups. Which process occurs which allows the new backups to contain the new datafiles?

A.The target database control file is synchronized from the recovery catalog with a full resync at the next backup.

B.The recovery catalog is synchronized from the target database control file with a full resync at the next backup.

C.The recovery catalog is synchronized from the target database control file with a partial resync at the next backup.

D.The target database control file is synchronized from the recovery catalog with a partial resync at the next backup.

Question 18

You have configured RMAN SBT channels to write backups to media.
You then take an RMAN backup by using this command:

Which three are true? (Choose three.)

A.The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.

B.The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.

C.All archive logs created after this backup are kept for two years.

D.The control file is included in the self-contained archival backup.

E.The SPFILE is included in the self-contaied archival backup.

F.The restore point is a label for the system change number (SCN) before the archival backup was taken.

Question 19

Examine this configuration:
CDB1 is a container database.
PDB1 and PDB2 are pluggable databases in CDB1.
PDB1 and PDB2 are OPEN in READ WRITE mode.
You execute these commands successfully:

Which two are true? (Choose two.)

A.Uncommitted transactions in CDB1 and PDB1 have been rolled back.

B.CDB1 is in MOUNT state

C.PDB1 is closed.

D.CDB1 is shut down.

E.Uncommitted transactions in PDB1 have been rolled back.

Question 20

In a single-instance, multitenant container database (CDB), which three are only ever defined in or part of CDB$ROOT?

A.user-defined PL/SQL packages

B.temporary tablespaces

C.redo logs

D.control files

E.undo tablespaces

F.all data dictionary metadata

G.mandatory Oracle-supplied PL/SQL packages

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Question 16

Question 17

Question 18

Question 19

Question 20

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