Cisco 642-889 Practice Exam Questions

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Question No. 1

Which three security features can be implemented on PEs inside a Cisco IOS XR VPLS environment? (Choose three.)

Answer: A, B, C

Question No. 2

Refer to the Cisco IOS XR router output exhibit,

which method is being used to transport IPv6 traffic over the service provider network?

Answer: B


Question No. 3

A customer requests Internet through its MPLS provider. Which Internet design model guarantees maximum security and easier provisioning?

Answer: C

Question No. 4

Which function is part of the mission of IETF?

Answer: C

Question No. 5

Refer to exhibit.

You are designing an MPLS L3VPN network and want to separate the BLUE routes from the RED routes. Only the BLUE VRF should be able to communicate with the BLUE VRF, and only the RED VRF should be able to communicate with the RED VRF. The BLUE VRF should not be able to communicate with the RED VRF and vice versa.

Which three configurations permit this design?

Answer: A, B, D

Question No. 6

When you are using OSPF as the CE-to-PE routing protocol in MPLS VPN implementations, an OSPF route from customerA site 1 in Area 0 will appear as which kind of OSPF route in customerA site 2, also in Area 0?

Answer: B

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