2. 计算机
  3. (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 detec

(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 detec

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问题 (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 conlmunication 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 nonperiodic basis over a range of media.
(70)is an identifier of a web page.
选项 A、ISDN　　　　　　　　　　　
B、x.25
C、Frame　Relay
D、ATM
答案D
解析
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