(41)is a protocol that a host uses to inform a router when it joins or leaves an Internet multicast group.(42)is an error detect

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问题 (41)is a protocol that a host uses to inform a router when it joins or leaves an Internet multicast group.(42)is an error detection code that most data communication networks use. (43)is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.(44)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.(45)is an identifier of a web page.

选项 A、HTTP
B、URL
C、HTML
D、TAG

答案B

解析 (1)IGMP(因特网组管理协议)是一个主机用户在加入或离开因特网组播组时用于通知路由器的协议。(2)CRC(循环冗余码)是在数据通信网络中最多使用的错误检测码。(3)RIP(路由信息协议)是一种利用距离矢量算法来传播路由信息的内部网关协议。(4)ATM(异步传输模式)是一种传输模式。在这种传输模式中,所有类型的信息都被组织在一个大小固定的信元中,通过异步或非周期方式在一定范围的介质上传输。(5)URL(统一资源定位器)是一张网页的惟一标识符。
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