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全部科目 > 软件认证工程师考试 > 思科认证考试 > CCNA系列认证 > CCNA(640-801)

单项选择题

Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?()

    A.255.255.0.0
    B.255.255.224.0
    C.255.255.254.0
    D.255.255.255.0
    E.255.255.255.224

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