ocp-v13-682

1. Identify the scenarios in which the RMAN CROSSCHECR command is useful. (Choose all that
   apply.)
   A.To check that the obsolete backups are deleted from the repository records and from the disk.

B.To update the RMAN repository if you delete archived redo logs with operating system commands.
C.To update outdated information about backups that disappeared from disk or tape or became corrupted
and inaccessible.

D.To synchronize the actual files on disk or in the media management catalog with the RMAN repository
for which the backup was not taken using RMAN.

确定的方案中哪个RMAN crosschecr命令有用
Crosschecks are useful because they can do the following:
Update outdated information about backups that disappeared from disk or tape or became corrupted
Update the repository if you delete archived redo logs or other files with operating system commands
答案为BC !

B 更新RMAN信息库,如果你删除归档重做日志和操作系统命令。
C 要更新从磁盘或磁带或已损坏的备份上无法访问的过期信息。