2012年8月29日星期三

Cisco 642-691 exam dumps


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1.Which two statements about a transit AS are correct? (Choose two.)
A.A transit AS has eBGP connection(s) to only one external AS.
B.Routes between ASs are always exchanged via eBGP.
C.A transit AS uses an IGP like OSPF or ISIS to propagate the external networks within the transit AS.
D.Core routers within a transit AS normally use default routing to reach the external networks.
E.iBGP sessions can be established between non directly connected routers.
Correct:B E

2.Refer to the exhibit and the following connectivity requirements. How many different VRFs are required? Sites CE1A, CE1B, CE1C, and CE1D require connectivity among them. Sites CE2A and CE2B require connectivity between them. Site CE12A requires connectivity to sites CE1A, CE1B, CE1C, CE1D, and CE12B. Site CE12B requires connectivity to sites CE2A, CE2B, and CE12A.
A.2 VRFs
B.3 VRFs
C.4 VRFs
D.6 VRFs
E.8 VRFs
F.10 VRFs
Correct:C

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