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2.25.The minimum length of a frame for the Ethernet is 64 bytes. Which of the following are correct when a node receives a frame shorter than 64 bytes ?
乙太網路訊框之最短長度為64 位元組。當一個節點收到小於64 位元組的訊框時,下列哪些敘述是正確的 ?
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| (a)No, it is impossible for a node to receive frames shorter than 64 bytes.不可能收到長度小於64位元組的訊框。 | |
| (b)Frames shorter than 64 bytes will be treated as “collided” frames and will be dropped directly. 長度小於64位元組的訊框會被當作被碰撞過的訊框,且被直接捨棄 | |
| (c)Frames shorter than 64 bytes can still be processed as some of the fields such as MAC addresses are correct. 長度小於64位元組的訊框依然會被處理,因為某些欄位的值(如MAC地址)是正確的 | |
| (d)Frames shorter than 64 bytes can still be processed as long as they are “broadcast” frames to all nodes. 長度小於64位元組的訊框依然會被處理,只要它是廣播訊框 | |
| (e)A jamming sequence (frame) will be sent to enforce the collision. 擾亂訊號(訊框)會被送出讓碰撞更為徹底 |