Which statement is true about the output of the command?

View the Exhibit to examine the output for the CROSSCHECK BACKUP command.
Which statement is true about the output of the command?

A. The backup piece is expired as the new backup is available
B. The backup piece is expired because the operating-system file was not found
C. The backup piece is expired because the retention period for the backup has expired
D. The backup piece is expired because the backup set to which it belongs is not complete

Correct Answer: B
Explanation/Reference:
EXPIRED and AVAILABLE Status
You can view the status of backup sets and copies recorded in the RMAN repository through LIST, vs views, or recovery catalog views (if you use RMAN with a catalog). Table 2-4 describes the meaning of each status.
The crosscheck command only processes files created on the same device type as the channels used for the crosscheck. The crosscheck command checks only objects marked available or expired in the repository by examining the files on disk for disk channels or by querying the media manager for sbc channels.
The CROSSCHECK command only processes files created on the same device type as the channels used for the crosscheck. The CROSSCHECK command checks only objects marked AVAILABLE or EXPIRED in the repository by examining the files on disk for DISK channels or by querying the media manager for sbt channels.

CROSSCHECK
Purpose
Use the CROSSCHECK command to synchronize the physical reality of backups and copies with their logical records in the RMAN repository.

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