2. 计算机
  3. For each blank, choose the best answer from the four choices and write down on the answer sheet. (71) is a channel’s capaci

For each blank, choose the best answer from the four choices and write down on the answer sheet. (71) is a channel’s capaci

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问题 For each blank, choose the best answer from the four choices and write down on the answer sheet.
     (71) is a channel’s capacity which directly reflects the data transfer rate of the channel.
     (72) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.
     (73) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
     (74) 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.
   Ethernet is the popular LAN developed under the direction of the (75).
选项 A、IEEE802.3
B、IEEE802.4
C、IEEE802.5
D、IEEE802.11
答案A
解析 带宽是指信道的容量，它直接反映信道的数据传输速率。路由信息协议(RIP)是一个内部网关协议(IGP)，它通过距离向量路由算法来传播路由信息。MAC地址是一个OSI第2层6个字节的地址，在提供点对点通信时唯一地标识每个网络设备。ATM即异步传输模式，实现OSI物理层和数据链路层功能，它以独有的信元进行数据传输。以太网是流行的、符合IEEE802.3标准的局域网。每个空格对应一个序号，有A、B、C、D4个选项，请选择一个最恰当的选项作为解答。
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