问题详情
Internet的网络层含有四个重要的协议,分别为()
A.IP,ICMP,ARP,UDP
B.TCP,ICMP,UDP,ARP
C.IP,ICMP,ARP,RARP
D.UDP,IP,ICMP,RABP
请帮忙给出正确答案和分析,谢谢!