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●ARP 协议属于(66) 协议，它的作用是 (67)。
(66)
A．物理层
B．数据链路层
C．网络层
D．传输层
(67)
A．实现MAC地址与主机名之间的映射
B．实现IP 地址与MAC地址之间的变换
C．实现IP 地址与端口号之间的映射
D．实现应用进程与物理地址之间的变换

A.物理层
B.数据链路层
C.网络层
D.传输层
E.实现MAC地址与主机名之间的映射
F.实现IP
G.实现IP
H.实现应用进程与物理地址之间的变换

【参考答案】

C,B

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