You executed the following command in the Recovery Manager (RMAN):
RMAN> REPORT NEED BACKUP days 3;
What is the output of this command?
A.
A list of files that require a backup within 3 days
B.
A list of files requiring more than 3 days of archivelogs to apply
C.
A list of files that RMAN recommends be backed up only once in every three days, based on low volatility
D.
A list of files for which a backup as already been performed in the last three days and which is required
to be backed up again based on the high number of transactions performed on them
Explanation:
http://download.oracle.com/docs/cd/B10501_01/server.920/a96566/rcmquery.htm#442383
To override the retention policy (or if you do not have a retention policy enabled), run REPORT NEED BACKUP DAYS. Any files older than the DAYS parameter value need a new backup because their backups require the specified number of DAYS worth of archived logs for recovery.