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Your ISP assigned you a full class B address space. From this, you need at least 300 sub-networks that can support at least 50 hosts each. Which of the subnet masksbelow are capable of satisfying your needs?()

  • A、255.255.255.0
  • B、255.255.255.128
  • C、255.255.252.0
  • D、255.255.255.224
  • E、255.255.255.192
  • F、255.255.248.0

参考答案

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