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單項(xiàng)選擇題

You have been allocated a 192.168.100.0/22 network. How many usable host are available?（）

A. 510
B. 512
C. 1022
D. 1024

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單項(xiàng)選擇題

What represents the decimal equivalence of 01101110?（）

A. 5
B. 96
C. 110
D. 118

單項(xiàng)選擇題

Which network mask is the equivalent of 255.255.248.0?（）

A. /20
B. /21
C. /22
D. /23