You are troubleshooting ARP connectivity issues for an Ethernet interface on an IOS XR network that runs IS-IS. You verify that the IGP protocol is running, but an ARP entry has not yet been created.
Which action should you take?

• A.debug ping packets
• B.debug ARP
• C.ping the connected neighbor
• D.verify the RIB table routes

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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?

• 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.

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While troubleshooting EoMPLS configuration problems, which three parameters should an engineer match between the two ends of the pseudowire configurations? (Choose three.)

• A.VLAN name
• B.Xconnect group name
• C.EFP subinterface number
• D.pseudowire ID
• E.MTU size
• F.control word usage

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An engineer noticed that PE3 is failing to accept IPv6 traffic information from PE1 The engineer confirmed that both PE3 and PE1 routers are configured accurately with IPv6 protocol To eliminate IPv6 traffic loss issue, which action must the engineer take to solve the problem?

• A.Configure 6PE that provides global IPv6 reachability over IPv4 MPLS
• B.Disable 6PVE that provides local IPv6 reachability over MPLS.
• C.Configure 6PE forwarding between 6PE routers based on the IPv6 header
• D.Allow PE routers use the MP-iBGP extensions in the IPv6 network configuration to exchange IPv6 reachability information.

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An engineer is investigating an EVPN traffic flow issue. Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?

• A.known unicast from a leaf to another leaf
• B.unknown unicast from a leaf to another leaf
• C.multicast from a leaf to another leaf
• D.known unicast from a root to another root

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