195.What is the purpose of the list expired backup command?
A. Lists all backups impacted by a resetlogs command
B. Lists all backups that are subject to retention criteria
C. Lists all backups that are missing associated physical backup set pieces
D. Lists the status of datafile backup failures due to the use of the duration command
E. Lists backups that cannot be used by the restore command because they have been marked as
disabled
Answer: C
答案解析：
LIST EXPIRED过期的，失效的
主要显示在物理磁盘上没有，而备份信息上有的。
Lists backups or copies that are recorded in the RMAN repository but that were not present at the expected location on disk or tape during the most recent crosscheck. Such backups may have been deleted outside of RMAN.