（703）Given below are RMAN commands to enable backup optimization and set the retention policy:

RMAN>CONFIGURE DEFAULT DEVICE TYPE TO sbt;

RMAN>CONFIGURE BACKUP OPTIMIZATION ON;

RMAN>CONFIGURE RETENTION POLICY TO REDUNCANCY 2;

The USERS tablespace has never been backed up.You take the USERS tablespace offline on Monday.

View the Exhibit to examine the operations performed by using RMAN.

hich two statements are true about the backup of the USERS tablespace?(Choose two.)

A.It will be backed up as a part of database backup on Friday.

B.It will be backed up as a part of database backup on Tuesday.

C.It will not be backed up as a part of database backup on Wednesday.

D.The command on Sunday deletes the backup of the USERS tablespace taken on Tuesday.

答案：（A、B）

解析：

然把users表空间offline了，但是在进行backup database的时候，还是当做数据库的一部分进行备份

但增量备份就不一样了，users表空间会在level 0备份中备份，但不会在非level 0备份中备份

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Oracle 11G OCP 1Z0-053 703