飞猴 发表于 2003-10-24 00:00:17

这道题讨论一下～

9.        Which of the following statements about a reliable connection oriented data transfer are true? (Choose two)<br>A. Recipients acknowledge receipt of data.<br>B. When buffers are filled to capacity, datagrams are discarded and not re transmitted.<br>C. Windows are used to control the amount in outstanding acknowledged data segments.<br>D. If the segments timer expires between receipt of an acknowledgement the sender drops the connection.<br>E. The receiving device waits for acknowledgements from the sending device before accepting more data segments.<br>

arsa 发表于 2003-10-24 08:11:15

答案是不是C，E啊？？？<br>一个是窗口机制，一个是确认

chinamoon 发表于 2003-10-24 23:26:43

<BLOCKQUOTE><strong>引用</strong>：<HR Size=1>原文由 <b>arsa</b> 发表:<br>答案是不是C，E啊？？？<br>一个是窗口机制，一个是确认<HR SIZE=1></BLOCKQUOTE><br><br>对,arsa的答案是正确的.飞猴有问题么? 主要在什么方面不够清楚? 说出来讨论一下.

westwindy 发表于 2003-10-26 17:10:41

英雄所见略同
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