A.Two or more PDBs can be duplicated with the same RMAN DUPLICATE command.

B.All tablespaces belonging to a PDB must be duplicated when duplicating the PDB.

C.The auxiliary instance is automatically created with ENABLE_PLUGGABLE_DATABASE = TRUE.

D.A user with SYSDBA or SYSBACKUP must be logged in with RMAN to the PDB to duplicate it.

E.CDB$ROOT and PDB$SEED are automatically duplicated.

A.after losing all copies of the control file

B.after losing an archived log from after the most recent backup

C.after losing an archived log from before the most recent backup

D.after losing the SYSTEM tablespace

E.when any archived log from, before, or after the most recent backup is corrupt.

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.

A.All metrics are instance related.

B.Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.

C.A space usage management alert is automatically cleared after the underlying problem is resolved.

D.They are generated by SMON when a tablespace is 97% full.

E.Metrics are statistical counts for a specific unit.

F.STATISTICS_LEVEL must be set to ALL to generate alerts.

A.Increase the level of RMAN multiplexing.

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

C.Disable FORCE LOGGING for the database.

D.Enable asynchronous disk I/O.

E.Increase the size of the database buffer cache.