go-back-n策略

[问答题] Go-back-N策略的基本原理是

[填空题] 当链路层使用窗口机制来描述Go-back-N方法时，其（）窗口等于1，而（）窗口大于1。

[单选题]在Go―back―N协议中（）A . 发送窗口=1，接收窗口=1B . 发送窗口>1，接收窗口=1C . 发送窗口>1，接收窗口>1D . 发送窗口=1，接受窗口>1

[单选题]若帧序号采用3位二进制码，对于GO-back-N的有序接收方式，发送窗口最大尺寸是（）.A . 1B . 3C . 8D . 7

[单选题]I will go back to my hometown as soon as I ______my examinations.A． will finishB． finishC． has finishedD． would finish

[单选题]She decided to go back to her home village _______ stay on in that strange city.A． thanB． insteadC． rather thanD． other than

[单选题]29． Ann didn't go back home because__________A． she didn't want toB． she was too busy to go homeC． she didn’t miss her fatherD． she had to look for a job

[名词解释] 投资偿还期（N，Pay Back Period）

[主观题]战略，策略n.

[问答题] Go/NO-Go联想测验。