40題、choose three

You perform RMAN backups for your database and use a recovery catalog for managing the backups. To free space, you execute this command:

RMAN> DELETE OBSOLETE;

Which three statements are true in this scenario?

A) The physical files related to the backup are deleted automatically.

B) The backup sets marked as expired are deleted.

C) The physical files related to the backup need to be manually deleted.

D) The information related to the backups is removed from the recovery catalog and the control file.

E) The backups deleted are based on the backup retention policy.

Answer：ADE

(解析：該類似的題目出現(xiàn)多次，delete obsolete刪除的是跟冗余策略相關(guān)的備份，有關(guān)的備份的信息和備份片都會自動更新和刪除。)

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