Identify three stages of recovery of Oracle RAC Database 12cR1, which can be done in parallel with RMAN’s RESTORE and RECOVER commands.

Identify three stages of recovery of Oracle RAC Database 12cR1, which can be done in parallel with
RMAN’s RESTORE and RECOVER commands.

A.
Applying archived redo logs

B.
Applying redo log files

C.
Applying incremental backups

D.
Restoring data files

E.
Restoring SPFILE

Explanation:
Parallel Recovery with RMANWith RMAN’s RESTORE and RECOVER commands, Oracle automatically
makes parallel the following three stages of recovery:
Restoring Datafiles When restoring datafiles, the number of channels you allocate in the RMAN
recover script effectively sets the parallelism that RMAN uses. For example, if you allocate five
channels, you can have up to five parallel streams restoring datafiles. Applying Incremental
Backups Similarly, when you are applying incremental backups, the number of channels you allocate
determines the potential parallelism. Applying Archived Redo Logs With RMAN, the application of
archived redo logs is performed in parallel. Oracle automatically selects the optimum degree of
parallelism based on available CPU resources.

http://docs.oracle.com/cd/B19306_01/rac.102/b14197/backup.htm#RACAD890