John is a CDB administrator, and Mike and Tim are PDB administrators of their respective
databases- John takes a complete CDB backup by using RMAN>Backup Database. Mike and Tim
may need point-in-time recovery of their PDBs. Which statement is true?
A.
Recovery of individual PDBs is not possible, because John did not back up by using
RMAN>Backup Pluggable database pdb1 pdb2. However, complete CDB recovery is still possible.
B.
Mike and Tim need to individually take backups of their respective PDBs, because CDB-level
backup does not include PDB data dictionary objects.
C.
Mike and Tim do not need to worry, because recovery of individual PDBs is possible.
D.
Recovery of individual PDBs is not possible at all.
Correct Ans: C
https://docs.oracle.com/database/121/BRADV/rcmbckba.htm#BRADV735
Backing Up a Whole CDB
Backing up a whole CDB is similar to backing up a non-CDB. When you back up a whole CDB, RMAN backs up the root, all the PDBs, and the archived redo logs. You can then recover either the whole CDB, the root only, or one or more PDBs from the CDB backup.
Backing Up a Whole Database with RMAN
You can perform a whole database backup with the database mounted or open. To perform a whole database backup, from the RMAN prompt, use the BACKUP DATABASE command.