Oracle OCP 1Z0 053 Q338(RMAN Expired Backup)

338.You run the following commands:
RMAN> list expired backup;
RMAN> delete expired backup;
What will happen to the backup set pieces associated with the backups that appear in the list expired
backup command?
A. They will be renamed.
B. Nothing will happen to them. The backup set pieces do not exist.
C. They will be deleted immediately since they are not in the flash recovery area.
D. You will need to manually remove the physical files listed in the output of the commands.
E. They will become hidden files and removed 10 days later.
Answer: B

expired backup是指：
控制檔案中記錄了某個備份集，但是這個備份集因為某種原因被從備份集所在位置被移除了，這個時候備份就是expired

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