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、ISDN
B、ATM
C、X.25
D、Frame　Relay
答案B
解析
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