Free Access Oracle.1Z0-083.v2022-02-19.q163 Practice Test (Page 7)

Question 26

Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

A.A connection to an auxiliary instance is always required.

B.A connection tothe recovery catalog instance is always required.

C.Duplication can be done by having the auxiliary databaseinstance pull backup sets from the target database instance.

D.A connection to the target database instance is always required.

E.A new DBID is always created for the duplicated database.

F.A subset of the target database can be duplicated.

G.A backup of the target database is always required.

H.Duplication can be done by having the target database instance push copies to the auxiliary database instance.

Question 27

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

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

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

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

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

E.Flashback logs areautomatically purged when DB_FLASHBACK_RETENTION_TARGET is set lower than the time they have already been retained.

Question 28

Which two are true about backup set compression using RMAN default compression? (Choose two.)

A.Binary compression adds CPU overhead to backup operations.

B.Compression can be done only for locally managed tablespaces.

C.Compressed backups can be written only to media.

D.Unused blocks below the high water mark are backed up.

E.Compressed backups cannot have a section size defined.

Question 29

Which two are true about server-generated alerts? (Choose two.)

A.Stateful alerts must be created by a DBA after resolving the problem.

B.Stateless alerts can be purged manually from the alert history.

C.Stateless alerts can be cleared manually.

D.Stateless alerts are automatically cleared.

E.Stateful alerts are purged automatically from the alert history.

Question 30

Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

A.ADDM can recommend shrinking the buffer cache.

B.ADDM can recommend extending the buffer cache.

C.By default, MMON creates an AWR snapshot every 30 minutes.

D.ADDM performs its analysis only when a DBA requests it.

E.By default, AWR snapshots are automatically purged after eight days.

F.AWR snapshots must be deleted when no longer required by ADDM.

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Question 26

Question 27

Question 28

Question 29

Question 30

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