Cisco 300-515 Online Practice Questions and Exam Preparation

Cisco 300-515 Online Questions & Answers

• Question 51:

  How do PE routers exchange CE routes between remote sites?

  A. by converting CE routes into VPNv4 routes and exchanging them using MP-BGP
  B. by establishing BGP neighbor relationships between all connected CEs to exchange routing information
  C. by learning IPv4 routes from connected CEs and redistributing them into the global IGP
  D. by converting CE routes into VPNv4 routes and exchanging them using the global IGP
  A. by converting CE routes into VPNv4 routes and exchanging them using MP-BGP

• Question 52:

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

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

• Question 53:

  An engineer is troubleshooting an EoMPLS circuit on a Cisco IOS XR router interface that removes a VLAN from the distribution layer. Which configuration should the engineer apply in order to accomplish the task?

  A. interface GigabitEthernet 0/10.l2transport encapsulation dot1q 10 rewrite ingress tag pop 1 symmetric l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 0/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
  B. interface GigabitEthernet 0/10.10 encapsulation dot1q 10 rewrite ingress tag pop 1 symmetric l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 0/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
  C. interface GigabitEthernet 0/10.10 l2transport encapsulation dot1q 10 l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 2/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
  D. interface GigabitEthernet 0/10.10 l2transport encapsulation dot1q 10 rewrite ingress tag translate 1-to-1 dot1ad 10 symmetric l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 0/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
  C. interface GigabitEthernet 0/10.10 l2transport encapsulation dot1q 10 l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 2/10.10 neighbor ipv4 10.10.10.2 pw-id 103588

• Question 54:

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

• Question 55:

  A network architect is troubleshooting the L2TPv3 tunneling security due to the untrusted nature of the underlaying network. Which two L2TPv3 features does the architect deploy to address the ongoing issues? (Choose two.)

  A. TCP MD5 authentication
  B. control message hashing
  C. CHAP authentication
  D. control message rate limiting
  E. asymmetric mutual authentication with PSK
  B. control message hashing
  C. CHAP authentication

• Question 56:

  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?

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

• Question 57:

  Refer to the exhibit.

  

  An engineer has configured router 1 to provide shared services to clients behind router 2.

  To complete the implementation so that routes from router 1 are accepted, what must the engineer configure on router 2?

  A. with import route targets 101:102 and 202:201
  B. with import route targets 201:202 and 401:402
  C. with export route targets 301:202 and 101:102
  D. with export route targets 201:202 and 401:402
  B. with import route targets 201:202 and 401:402

• Question 58:

  How does Layer 3 VPN traffic traverse an ISP network?

  A. Devices on the network use MPLS labels to share VPN routes between P routers in the network.
  B. Devices on the network use LSAs to share routes between P routers in the network.
  C. Devices on the network use MPLS labels to move VPN traffic through the network.
  D. Devices on the network use GRE tunnels to move traffic between VRFs.
  C. Devices on the network use MPLS labels to move VPN traffic through the network.

• Question 59:

  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
  C. ping the connected neighbor

• Question 60:

  

  Refer to the exhibit. A network engineer has been called to configure the four PE devices in order to enable full communication among the four CE devices connected to them. While starting to configure, he experienced a connectivity issue. Which two tasks should the engineer perform in order to begin the process correctly? (Choose two.)

  A. Configure PE3 to export route-targets 100:1 and 200:2.
  B. Configure PE3 to import route-targets 100:1 and 200:2.
  C. Configure PE4 to import route-targets 101:1 and 202:2.
  D. Configure PE2 to export route-targets 300:3 and 400:4.
  E. Configure PE1 to import route-targets 300:3 and 400:4.
  A. Configure PE3 to export route-targets 100:1 and 200:2.
  B. Configure PE3 to import route-targets 100:1 and 200:2.