2. 计算机
  3. CSMA，although more efficient than ALOHA or slotted ALOHA，still has one glaringinefficiency．If the medium is busy，the station wil

CSMA，although more efficient than ALOHA or slotted ALOHA，still has one glaringinefficiency．If the medium is busy，the station wil

admin2019-05-15  65
问题 CSMA，although more efficient than ALOHA or slotted ALOHA，still has one glaringinefficiency．If the medium is busy，the station will wait for a random amount of time．Whentwo frames collide，the medium remains (71)for the duration of transmission of bothdamaged frames．The use of random delays reduces the probability of (72)．For (73)frames，compared to propagation time，the amount of wasted capacity can be considerable．This waste can be reduced if a station continues to listen to the medium while (74)．The maximum utilization depends on the length of the flame and on the (75)time；the longer theframes or the shorter the propagation time，the higher the utilization．
(75)
选项 A、propagation
B、transmission
C、colliding
D、1istening
答案A
解析
转载请注明原文地址:https://kaotiyun.com/show/INkZ777K
本试题收录于： 网络管理员上午基础知识考试题库软考初级分类
0

网络管理员上午基础知识考试

软考初级

相关试题推荐
随机试题
最新回复(0)