单选题An administrator has provided a 24 bit netmask. Which of the following options indicates the number of host addresses that are available in a network？（）A24B126C128D254
单选题
An administrator has provided a 24 bit netmask. Which of the following options indicates the number of host addresses that are available in a network？（）
A
24
B
126
C
128
D
254
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