单项选择题
如果C类子网的掩码为255.255.255.240，则包含的子网位数、子网数目、每个子网中的主机数目正确的是（）。
A.2.2.2
B.3.6.30
C.4.14.14
D.5.30.6
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相关考题
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多项选择题
Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。
A.It is locally significant
B.It is globally significant
C.It is needed to identify a unique instance of an OSPF database
D.It is an optional parameter required only if multiple OSPF processes are running on the router
E.All routers in the same OSPF area must have the same process ID if they are to exchange routing information -
多项选择题
Which of the following host addresses are members of networks that can be routed across the public Internet? （）
A.10.172.13.65
B.172.16.223.125
C.172.64.12.29
D.192.168.23.252
E.198.234.12.95
F.212.193.48.254 -
单项选择题
给您分配一个B类IP网络172.16.0.0，子网掩码255.255.255.192，则您可以利用的网络数为（），每个网段最大主机数（）。
A.512；126
B.102；262
C.102；462
D.256；254
E.192；254
