QUESTION 146
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
Answer: A
同234题:http://blog.csdn.net/rlhua/article/details/11820583
Explanation/Reference:
Section: Backup, Recovery & Recovery Manager (RMAN)
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 datablocks that have changed since the last level 1 or level 0 incremental backup.