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53. ping is a useful network utility used to test the reachability of a host on networks. Which of the following protocols does this utility rely on？
(A) ICMP: Internet Control Message Protocol
(B) TCP: Transmission Control Protocol
(C) UDP: User Datagram Protocol
(D) SNMP: Simple Network Management Protocol



53. ping is a useful network utility use..-阿摩線上測驗