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Free 300-515 Exam Braindumps (page: 7)

Page 6 of 15
PDF with 71 Questions

The CTO of a company requires the support of a network consultant to deliver an MPLS solution without resigning to a certain degree of redundancy and scalability. Which solution effectively scales to hundreds or thousands of sites?

  1. L2VPN with the broadcast traffic processed at the ingress PE.
  2. L3VPN with direct LSP connectivity between all PEs.
  3. L2VPN by encapsulating multiple frame formats with interworking.
  4. L3VPN using a hierarchical topology of N-PEs and U-PEs.

Answer(s): D



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?

  1. debug ping packets
  2. debug ARP
  3. ping the connected neighbor
  4. verify the RIB table routes

Answer(s): C



Which two are characteristics of using a non-MPLS peer-to-peer model over a traditional overlay model? (Choose two.)

  1. The model is suited for nonredundant configurations.
  2. The configuration on a newly added site PE is updated automatically.
  3. Provider routers know the customer network topology.
  4. The customer specifies the exact site-to-site traffic profile.
  5. Routing information is exchanged between the customer router and one or a few PEs.

Answer(s): C,E


Reference:

http://etutorials.org/Networking/MPLS+VPN+Architectures/Part+2+MPLS-based+Virtual+Private+Networks/Chapter+7.+Virtual+Private+Network+VPN+Implementation+Options/Overlay+and+Peer-to-peer+VPN+Model/



While troubleshooting an AToM L2VPN service, a network consultant notices that the AC Layer 2 encapsulations are different. Which action should the consultant take in order to make the MPLS L2VPN work?

  1. tag-rewrite on the ingress and egress PE router
  2. interworking IP configuration on the last PE router before label disposition
  3. nonrouted interworking setup to properly translate only the Layer 2 information from the AC
  4. interworking IP configuration on both the AC terminations on the PEs

Answer(s): D


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_l2_vpns/configuration/xe-16-11/mp-l2-vpns-xe-16-11-book/l2vpn-interworking.html






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