标签：round who ast col last hat class hang blocks
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
标签：round who ast col last hat class hang blocks
原文地址：http://www.cnblogs.com/Babylon/p/7845053.html
