A.A block being recovered is not accessible.

B.The data file containing the block being recovered remains online.

C.To use it, Flashback Database must be enabled.

D.It can be performed on noncorrupt blocks.

E.It cannot repair logical corruption.

F.The target database for which one or more blocks are to be recovered must be in the OPEN state.

A.A DBA must specify either a redundancy retention policy or a recovery window retention policy.

B.A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.

C.Backups older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.

D.Backups written to the fast recovery area (FRA) that are obsolete based on the redundancy retention policy can be deleted automatically to free space.

E.A target database's persistent RMAN configuration settings are always stored in the target's control file

A.The number of table rows is considered when evaluating the cost of accessing a table using an index.

B.Index balanced B*Tree height is considered when evaluating the cost of using an index.

C.Statistics collected using DBMS_STATS always yield the best optimizer result.

D.The Statistics Advisor can help recommend the best way to gather statistics.

E.The Statistics Advisor generates actions for all recommendations.

A.when the operating system (OS) needs to be changed as part of the upgrade

B.when the hardware platform needs to be changed as part of the upgrade

C.when the target and source database are on the same platform

D.when a character set conversion is required during the upgrade

E.when multiple pluggable databases in a container database have to be upgraded in a specific sequence

A.The HR_PDB1 clone created in CDB2 will be in mount state when cloning ends.

B.Cloning HR_ROOT automatically clones HR_PDB1.

C.All transactions in HR_PDB1 of CDB1 must commit before the cloning process starts.

D.CDB1 and CDB2 must be In shared undo mode.

E.A common user must exist in CDB2 with the create pluggable database privilege.