多选题You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）AThere are 254 usable subnets.BThere are 256 usable hosts per subnet.CThere are 50 usable subnets.DThere are 254 usable hosts per subnet.EThere are 24 usable hosts per subnet.FThere is one usable network.
多选题
You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）
A
There are 254 usable subnets.
B
There are 256 usable hosts per subnet.
C
There are 50 usable subnets.
D
There are 254 usable hosts per subnet.
E
There are 24 usable hosts per subnet.
F
There is one usable network.
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