Question 1

The network engineering group of a large ISP needs to harden the management plane of its Cisco 9000

Series ASRs. While addressing IPv6 ICMP issues, they realized they have to limit the rate at which IPv6 ICMP error messages are sent out on the network. Which command do they need to apply?

Options :

A : icmp ipv6 rate-limit unreachable 1000

B : ipv6 rate-limit 1000

C : icmp ipv4 rate-limit unreachable 1000

D : ipv6 icmp error-interval 50 20

Answer: D

Question 2

Which is the primary function of a MPLS L3 VPN route target?

Options :

A : It imports and exports identified routes into selected VRFs.

B : It uniquely identifies NLRIs that have the same numeric value.

C : It imports the external routes it identifies into VRFs that support Internet traffic

D : It supports QoS by classifying traffic by file type when it applies MPLS EXP bits to each packet.

Answer: A

Question 3

An ISP provides a major client MPLS VPN for managed services. The MPLS engineering team needs to use the advanced VPN feature of selective VRF import so that only specific prefixes are present in the required VPNs.

Which aspect of this feature must the team consider?

Options :

A : A route must pass the import route map first and then the route target import filter.

B : The routers that are imported in the VRF can be BGP and IGP routes, so other match conditions in the route map, besides communities, can be used.

C : The import-map command is applied under the PE interface that connects to the CE router.

D : A route is imported into the VRF only when at least one RT that is attached to the route matches one RT that is configured in the VRF and the route is permitted by the import route map.

Answer: D

Question 4

What is a requirement to share VRF reachability information to all members of a VPN when using IPv6?

Options :

A : PE and CE routers must be running BGP as the PE-CE routing protocol

B : PE routers must have MPLS disabled and be running MP-BGP between all P and PE routers.

C : PE routers must be running MP-BGP and bgp default ipv4-unicast must be disabled

D : All PEs must have the same VRFs configured.

Answer: D

Question 5

A network engineer is implementing Layer 3 MPLS VPNs on Cisco IOS/IOS XE PE routers. Which PE-to-CE routing protocol requires a separate routing process to be created for each VRF?

Options :

A : RIPv2

B : OSPF

C : BGP

D : EIGRP

Answer: B

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