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Examine the command used to perform an incremental level-0 backup:
RMAN>BACKUP INCREMENTAL LEVEL0 DATABASE;
To enable block change tracking, after the incremental level 0 backup, you issue the command:
SQL>ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING

FILE’/mydir/rman_change_track.f’;
To perform an incremental level-1 cumulative backup, you issue the command:
RMAN>BACKUP INCREMENTAL LEVEL1 CUMULATIVE DATABASE;
Which two statements are true in the preceding situation?

A. The block change tracking data is used only from the next incremental backup.

B. The incremental level 1 backup fails because a block change tracking file Is created after the level 0 backup.

C. The incremental level 1 backup does not use change tracking data for accomplishing the backup.

D. The block change tracking file scans all blocks and creates a bitmap for the blocks backed up in the level 0 backup.

E. The block change tracking data is used for the next incremental level 1 backup only after the next level 0 backup.

Explanation:

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