You configured the default backup device type as disk for RMAN backups. In your database, because of
business requirements, you have to take a simultaneous duplicate backup of the data files when the RMAN
BACKUP command is used.
What must you set using the RMAN CONFIGURE command to achieve this?
A.
MAXSETSIZE TO 2;
B.
DEVICE TYPE DISK PARALLELISM 2;
C.
RETENTION POLICY TO REDUNDANCY 2;
D.
DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;
Explanation:
Duplexing Backup Sets with CONFIGURE BACKUP COPIES (Link)