102高考三級電腦網路第二題checksum解法 - 高考
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By Anonymous
at 2013-07-08T20:47
at 2013-07-08T20:47
Table of Contents
看完題目後,其實想了一下該如何分割計算區塊
因為題目說5bits,但一般的教科書(如劉金順)及補習班類似的考題解法
都是使用16bits為一整數集合進行計算
而且TCP或UDP的checksum欄位也是16bits啊
幾經掙扎後最後還是用16btis加最後5bits的方式進行計算
結果今天看到補習班的解答後,就唉...
我想絕大多數的考生都是分割成5bits下去計算
有人跟我一樣的算法嗎?
有點想提試題疑義...因為題目的假設跟現行實際情況似有不符之處
--
因為題目說5bits,但一般的教科書(如劉金順)及補習班類似的考題解法
都是使用16bits為一整數集合進行計算
而且TCP或UDP的checksum欄位也是16bits啊
幾經掙扎後最後還是用16btis加最後5bits的方式進行計算
結果今天看到補習班的解答後,就唉...
我想絕大多數的考生都是分割成5bits下去計算
有人跟我一樣的算法嗎?
有點想提試題疑義...因為題目的假設跟現行實際情況似有不符之處
--
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