2个605的题,请大家帮忙看看,谢谢

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查看11 | 回复4 | 2005-10-30 17:05:33 | 显示全部楼层 |阅读模式
Which three statements about NAT are true? (Choose three)
A. NAT increases delay.
B. PAT is a subset of NAT.
C. NAT is always processed-switched.
D. NAT supports static address translation.

Which three statements about Frame Relay are true? (Choose three)
A. It is available to run on SVCs.
B. It is Layer 2-based technology.
C. It is reliable transport technology.
D. It is available in all countries of the world.
E. It is a connection-oriented datalink technology.
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千问 | 2005-10-30 17:05:33 | 显示全部楼层
1. A(?)BD
2. ABE
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千问 | 2005-10-30 17:05:33 | 显示全部楼层
最初由 iamwind 发布
[B]1. A(?)BD
2. ABE [/B]

同意(灌水大章)
A. NAT increases delay.
这当然是对的,
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千问 | 2005-10-30 17:05:33 | 显示全部楼层
谢谢2位的回答!
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千问 | 2005-10-30 17:05:33 | 显示全部楼层
做nat时要对数据报的源ip做更改,所以当然会有延迟
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