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ARP协议的作用是 (1) ,ARP报文封装在 (2) 中传送。
(1)A、由IP地址查找对应的MAC地址
B、由MAC地址查找对应的IP地址
C、由IP地址查找对应的端口号
D、由MAC地址查找对应的端口号
(2)A、以太帧
B、IP数据报
C、UDP报文
D、TCP报文

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软题库参考答案:A、A(仅供参考)

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