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单选题You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scena

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单选题
You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）
A

The backup status will be marked expired in RMAN recovery catalog.

B

The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.

C

The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl

D

The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.

E

The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.

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