多项选择题
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
单项选择题 How many usable IP addresses can you get from a conventional Class C address?()
多项选择题 You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?()
单项选择题 The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?()