For each blank,choose the best answer from the four choices and write down on the answer sheet.

(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group. (67) is an error detection code that most data communication networks use. (68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information. (69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media. (70) is an identifier of a web page. A.SMTP B.ICMP C.RARP D.IGMP

时间:2023-01-16 16:16:34

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