题目内容

现有一个B类网络地址160.18.0.0,如要划分子网,需要最多划分40个子网,则划分时容纳最多主机时,其子网掩码为 ( ) 。

A. 255.255.192.0
B. 255.255.224.0
C. 255.255.240.0
D. 255.255.252.0
E. 255.255.255.192
F. 255.255.255.224
G. 255.255.255.240
H. 255.255.255.252

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现有一个VLSM地址160.171.219.125/20,则其所处的网络的广播地址为 ( ) 。

A. 160.171.208.255
B. 160.171.216.255
C. 160.171.223.255
D. 160.171.192.255
E. 160.171.200.255
F. 160.171.224.255
G. 160.171.218.255
H. 160.171.255.255

What is the broadcast address of the subnet address 172.16.8.159 255.255.255.192? ( )

A. 172.16.255.255
B. 172.16.8.127
C. 172.16.8.191
D. 172.16.8.255

What is the broadcast address of the subnet address 192.168.10.33 255.255.255.248? ( )

A. 192.168.10.40
B. 192.168.10.255
C. 192.168.255.255
D. 192.168.10.39

If you wanted to have 12 subnets with a Class C network ID, which subnet mask would you use? ( )

A. 255.255.255.252
B. 255.255.255.248
C. 255.255.255.240
D. 255.255.255.255

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