这题为什么选C?

老农

说的是啊！
原来的不可能是4M（4.5G硬盘嘛）。
所以，这题还是有问题。

sunnyxia

对,这题肯定是有点问题,还放在IBM网站上,害我想了好久都没有结果

jackx

I don't think there is some error in this exercise. You should know lots of things before you backup and restore, such as check the used space in the original disk and the free spaces in the target disk. But if target size is not so large as the original one, you should modify the image.data. This exercise just want you to know that.