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单项选择题How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?（）

A、8 subnets, 31 hosts

B、8 subnets, 32 hosts

C、16 subnets, 30 hosts

D、16 subnets, 32 hosts

E、A Class B address can't be subnetted into the fourth octet.

  • C

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