采用可变长子网掩码可以把大的网络分成小的子网，例如把A类网络60.15.0.0/16分为两个子网，假设第一个子网为60.15.0.0/17，则另一个子网为（ ）。
- A.60.15.1.0/17
- B.60.15.2.0/17
- C.60.15.100.0/17
- D.60.15.128.0/17
正确答案及解析
正确答案
解析
把A类网络60.15.0.0/16分为两个子网，应该拿出1位主机位进行子网划分，那么划分的2个子网分别是60.15.0 0000000 00000000/17和60.15.1 0000000 00000000/17。
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