902题库问题求解答。貌似题库出错。

bqy314495

QUESTION 263
Refer to the exhibit.A Boston company bought the assets of a New York company and is tring to route traffic between the two data networks using EIGRP.The show command output shows that traffic will not flow between the networks,as a network consultant,you were asked to modify the configuration and certify the interability of the two networks.For traffic to flow from subnet 172.16.8.0/24 to the 172.16.16.0/24 subnet,which configuration change do you recommend?

A.  turn off autosummarization on routers N1 and B1
B.  add IP summary addresses to the internet-pointing interfaces of routers N1 andB1
C.  turn off autosummarization on routers N2 and B2
D.  add wildcard masks to the network commands on routers N2 and B2
Answer: D
备注竟然是没正确答案。CD一样。


QUESTION 39
Refer to the exhibit. A Boston company bought the assets of a New York company and is trying to route traffic between the two data networks using EIGRP. The show command output shows that traffic will not flow between the networks. As a network consultant, you were asked to modify the configuration and certify the interoperability of the two networks. For traffic to flow from subnet 172.16.8.0/24 to the 172.16.16.0/24 subnet, which configuration change do you recommend?

A.  Turn off autosummarization on routers N1 and B1.
B.  Add IP summary addresses to the Internet-pointing interfaces of routers N1 and B1.
C.  Turn off autosummarization on routers N2 and B2.
D.  Add wildcard masks to the network commands on routers N2 and B2.
Answer: A
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请问这2题有区别么。。我实在看不出来区别

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还有这道 拖图题

出现了2个  sh ip bgp 其中一个应该是 sh  ip  route bgp吧！


3个问题 在线求解答

bqy314495

人工置顶求解答 本周日就要考了

drainer01375

arica66

选A，在N1和B1之间关掉自动汇总，因为EIGRP默认是将网段自动汇总成主类网络号，这样对于终端来说，无法识别172.16.8.0和172.16.16.0.因为EIGRP宣告的都是172.16.0.0/16网段，业务无法互通。

Mr.Nokia

Take a Scenario: Route traffic between 172.16.8.0/24 and 172.16.16.0/24


1- turn off autosummarization on routers N1 and B1
2- turn off autosummarization on routers N2 and B2

Basically auto route summarization happens at the classful network boundary...so that would make N1 and B1 the locations that summarization would occur for the 172.16.0.0/16 classful networks.

So if you left auto-summarization enabled on those 2 routers, you would have an issue with discontiguous networks being advertised by both routers N1 and B1 with their classful mask (172.16.0.0/16 and 10.0.0.0/8), which will cause you issues.

Turning off auto-summarization on N2 and B2 wouldn't make any difference, as their networks wouldn't be summarized due to the fact that they are not meeting a classful boundary on their perspective routers. N1 will receive the 172.16.8.0/24 network from N2 with auto-summarization enabled.

bqy314495

sdwchow 发表于 2011-11-25 09:59

                               
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第1问题库错了
第2问题库对了
第3问是你对了

时间过得真快 我已经考完CCNP全部了，而且也参加工作了 ，