单选题Which of the addresses below is an example of a valid unicast address?（）A172.31.128.255./18B255.255.255.255C192.168.24.59/30D224.0.0.5EAll of the above
单选题
Which of the addresses below is an example of a valid unicast address?（）
A
172.31.128.255./18
B
255.255.255.255
C
192.168.24.59/30
D
224.0.0.5
E
All of the above
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