902题库91题

陆平_fl

BD 我下周考 D是对的

TOBEACCIE

陆平_fl 发表于 2013-3-13 09:44

                               
登录/注册后可看大图

BD 我下周考 D是对的

一道爱人试题

6楼正解。

一道爱人试题

只能说route-map理解的不够深入，结合五道实验题之一的那个基于策略的路由那道，就理解了。

一道爱人试题

2.20的题库基本是没有错误的答案的  该纠正的都纠正了

FireFire

TOBEACCIE 发表于 2013-3-12 12:35

                               
登录/注册后可看大图

d选项的结果是：上面原来45不会变，而受影响的是中间的百分之20， 因为MED大，所以不被优先考虑，从而改走 ...

怎么可能不影响原来的45%,注意我说的默认ACL的最后一句Deny Any Any <--------它这句是干嘛的?就是干掉了原来的45%.

jialoo

如果E因为Deny Any Any的影响只学到45%流量的路由，那E其他流量的路由怎么学习？不能断了吧

jialoo

这个解答是选的B D
http://www.digitaltut.com/bgp-questions-5

jialoo

In answer C & B (combined), the MED for prefix 10.10.1.16/28 through router A is set to 150. This would make traffic for this route (45%) go through router B (because the MED default value is 0, which is lower than 150). Since the access-list will also NOT match prefixes: 10.10.1.32/28 & 10.10.1.48/28 – traffic for these two prefixes will be forwarded just normally (via the routing table) ->
Traffic for prefix: 10.10.1.32/28 will continue to go via the upper E-A link (now just 20% total load), while traffic for prefixes 10.10.1.16/28 and 10.10.1.48/28 will be going through the lower F-B link (now 65% total load) -> Original unbalanced (65/20) load is maintained, although it has been reversed between the upper (A-E) and lower (B-F) link -> C is not correct.

For more information about Policy-based routing matches you can read this article: http://www.ciscopress.com/articl ... 426637&seqNum=2

If answer D is applied for router A, the MED for 10.10.1.32 set to 150 would make traffic for this route go through router B (because the MED default value is 0, which is lower than 150). So router A will be responsible for 45% traffic and router B will receive 40% traffic -> D is correct.

yhny

看来这个题目还是没有最终的结果啊，亏了这么多过NP的

andyla3

闫辉CCNP 642-902 V200题库视频讲解 里很清晰说明了正确答案是 BD

xyflysky

应该是BD，我今天选BC错啦，总共就错这道，
只要影响一个20%的流量，其它不变，就负载成了45%和40%，D才是最好的选择！！！！害我没千分