关于CCNA题库(640-802)V104.3中的93题请教
QUESTION 93 这个题怎么选的A看解析没看懂
Refer to the exhibit. The network is converged.After link-state advertisements are received from Router_A,
what information will Router_E contain in its routing table for the subnets 149.23.64 and 208.149.23.96?
A. 208.149.23.64 via 190.173.23.10,00:00:07,FastEthemet0/0
208.149.23.96 via 190.173.23.10,00:00:16,FastEthemet0/0
B. 208.149.23.64 via 190.172.23.10,00:00:07, Serial1/0
208.149.23.96 via 190.173.23.10,00:00:16, FastEthemet0/0
C. 208.149.23.64 via 190.173.23.10,00:00:07, Serial1/0
208.149.23.96 via 190.173.23.10,00:00:16, Serial1/0
208.149.23.96 via 190.173.23.10,00:00:16,FastEthemet0/0
D. 208.149.23.64 via 190.172.23.10,00:00:07, Serial1/0
208.149.23.96 via 190.173.23.10,00:00:16, Serial1/0
Answer: A
Explanation/Reference:
考点:考查OSPF cost值计算。cost=10的8次方除以带宽。在routerA上metric 12,到routerE经过100M网
络。
A:正确
B:错误,metric值不对。
C:错误,下一跳接口不对。
D:错误,metric值不对。
这个,有压力 石小强 发表于 2011-8-10 09:16 static/image/common/back.gif
这个,有压力
呵呵十分有压力 等我去帮你叫人~ 坐等高手。。。 Kevin_Liu 发表于 2011-8-10 09:44 static/image/common/back.gif
等我去帮你叫人~
--谢谢 -woniu2--woniu2-么有高人来吗? 石小强 发表于 2011-8-10 09:16 static/image/common/back.gif
这个,有压力
不是一般的有鸭梨。。。。 楼主是什么看不懂?解释的看不懂么?是不懂得怎么计算还是-woniu1- 默认的 ospf的参考带宽是100000k, 即,100M的链路的cost是1,从f0/0学到的路由经过了一个百兆链路,所以他的metric加1,所以就为13,C选项下一跳接口不对,d选项metric不对,接口也不对........
页:
[1]
2