下面地址中属于单播地址的是（ ）。
- A.125.221.191.255/18
- B.192.168.24.123/30
- C.200.114.207.94/27
- D.224.0.0.23/16
正确答案及解析
正确答案
解析
下面4个网络地址的二进制形式是
A.125.221.191.255/18 01111101.11011101.10111111.11111111
B.192.168.24.123/30 11000000.10101000.00011000.01111011
C.200.114.207.94/27 11001000.01110010.11001111.01011110
D.224.0.0.23/16 11100000.00000000.00000000.00010111
上面各地址二进制表示中的加黑部分是子网掩码，可以看出 A 和 B 都是广播地址，D 是组播地址，只有 C 是单播主机地址。
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