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You have a Class C network, and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?（）

  • A、255.255.255.192
  • B、255.255.255.224
  • C、255.255.255.240
  • D、255.255.255.248
  • E、None of the above
正确答案:C
答案解析:有
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