You use RMAN to take regular backups for your database. Examine the RMAN commands:
RMAN> CROSSCHECK BACKUP; RMAN> DELETE EXPIRED BACKUP;
Which statement is true?
A. All metadata pertaining to backups and archived redo log files that have exceeded the age set by the RMAN retention policy are deleted from the repository.
B. All backups that have exceeded the age set by the RMAN retention policy are deleted.
C. All metadata, for backups and archived redo log files that are recorded in the repository but do not exist on disk or media, is deleted.
D. All backups and archived redo log files that are not required for the recovery are deleted and the repository is updated.
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