Cisco CCNP 300-515 Questions & Answers

• Question 1:

  How do Ethernet virtual circuits provide a way for service providers to maximize the use of VLAN tags'-1

  A. They add an additional tag to VLANs that allows up to two switch ports to use the same globally configured VLAN ID.

  B. They redefine the VLAN tag to include classification, forwarding, and QoS using MPLS labels and EXP bits

  C. They separate the classification and forwarding concepts for VLAN tagging which allows multiple switch ports to use the same VLAN ID without it being configured globally.

  D. They assign VLAN IDs to VTP domains so that the same VLAN ID are used more than once globally.

  Correct Answer: C

• Question 2:

  Refer to the exhibit.

  

  Router 1 is a route reflector client within a service provider core PE1 cannot see VPNv4 routes received from the ASBR PE1 only has an iBGP relationship with Router 1. Which action resolves this issue?

  A. Activate PE1 as a neighbor under the IPv4 address family.

  B. Configure Router 1 as a route reflector for PE1 under the VPNv4 address family.

  C. Configure PE1 to have an eBGP relationship with Router 1.

  D. Enable BGP default ipv4-unicast

  Correct Answer: B

• Question 3:

  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

  Correct Answer: B

• Question 4:

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

  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.

  Correct Answer: D

• Question 5:

  Refer to the exhibit.

  

  What is shown in this output?

  A. local and outgoing abels are updated in hardware

  B. BGP is used between neighbors that are exchanging MPLS labels

  C. LDP neighbor statuses

  D. the labels received and advertised on PE1

  Correct Answer: D

• Question 6:

  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.

  Correct Answer: C

• Question 7:

  Refer to the exhibit.

  

  An organization is running H-VPLS on a network comprising four routers in a hub-and-spoke topology with R1 as the hub An engineer added a new spoke with multiple VCs to the network, and now traffic cannot flow properly How should the engineer update the configuration on R1 to correct the problem?

  A. Disable spanning tree to allow loops to occur within the hub-and-spoke topology.

  B. Disable split horizon to allow multiple VCs per spoke

  C. Disable Cisco Discovery Protocol to allow MPLS to share labels between the designated spokes

  D. Disable Cisco Discovery Protocol to allow for neighbor discovery

  Correct Answer: B

• Question 8:

  Refer to the exhibit.

  

  Refer to the exhibit Router 1 is a P router in the ISP MPLS core A connected P router cannot generate an MPLS label for the router 1 loopback0 interface Which action resolves this issue?

  A. The loopback0 interface must be in OSPF area 0.

  B. The network statement under the routing process must have a wildcard mask of 0 0.0 255.

  C. The OSPF network type must be changed on loopback0 to point-to-point

  D. A static route to null 0 must be added for the loopback interface and then static routes must be redistributed into OSPF

  Correct Answer: B

• Question 9:

  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

  Correct Answer: B

• Question 10:

  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

  Correct Answer: A