Which two statements are true in the preceding situation?

Examine the command used to perform an incremental level-0 backup:
RMAN>BACKUPINCREMENTALLEVEL0DATABASE; To enable block change tracking,
after the incremental level 0 backup, you issue the command:
SQL>ALTERDATABASEENABLEBLOCKCHANGETRACKINGUSING
FILE’/mydir/rman_change_track.f’; To perform an incremental level-1 cumulative backup,
you issue the command:
RMAN>BACKUPINCREMENTALLEVEL1CUMULATIVEDATABASE; 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.