Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?
A.
a cumulative level 1 backup
B.
a differential level 1 backup
C.
a full backup
D.
a whole backup
Explanation:
A cumulative level 1 backup contains only the blocks that have changed since the last level 0 incremental backup.
A full backup contains all used data blocks.
A whole backup contains all used and unused data blocks.
A differential level 1 backup contains only the data blocks that have changed since the last level 1 or level 0 incremental backup.