wangyueyao123 发表于 2017-9-27 04:33:17

9.26 400-101 美国 941 Pass

坐标美国，213题库稳定，有一道新的关于HDLC的拖图题，感谢鸿鹄论坛。

frame formats of I-frame,U- frame,S-frameHDLC uses the control field(C) to determine how to control the communications process. This field contains the commands, responses and sequences numbers used to maintain the data flow accountability of the link, defines the functions of the frame and initiates the logic to control the movement of traffic between sending and receiving stations. There three control field formats。





MIKY960 发表于 2017-10-11 10:07:34

{:6_264:}{:6_264:}{:6_264:}{:6_264:}{:6_264:}

hellben 发表于 2018-8-30 22:10:27

恭喜楼主
页: [1]
查看完整版本: 9.26 400-101 美国 941 Pass