How many subnetworks and hosts are available per subnet if you apply a / 28 mask to the 210 . 10 . 2 . 0 class c network 以28位子网掩码划分的c类地址段,多少个可用的网络和主机地址?
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How many subnetworks and hosts are available per subnet if you apply a / 28 mask to the 210 . 10 . 2 . 0 class c network 如果你在c类网络210 . 10 . 2 . 0使用一个/ 28的掩码,可有多少子网,每个子网有多少台可用主机?