试题详情
- 单项选择题You have been asked to use a 30 bit subnet mask to segment the following network block: 108.12.5.0. How many useable subnetworks and usable hosts could be created?（）
A、32 networks with 8 hosts
B、62 networks with 2 hosts
C、30 networks with 16 hosts
D、32 networks with 14 hosts
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