Cisco 300-515 Online Practice Questions and Exam Preparation

Cisco 300-515 Online Questions & Answers

• Question 21:

  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?

  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
  D. ipv6 icmp error-interval 50 20

• Question 22:

  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
  B. Disable split horizon to allow multiple VCs per spoke

• Question 23:

  Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)

  A. cluster ID
  B. local preference
  C. origin
  D. originator ID
  E. AS_PATH
  A. cluster ID
  D. originator ID

• Question 24:

  

  Refer to the exhibit. If the two devices are operating normally, which two conclusions can you draw from this configuration? (Choose two.)

  A. CE1 must use OSPF to establish a neighbor relationship with PE1.
  B. PE1 labels the routes it learns from CE1 with the route-target 222:2 and shares them with its VPNv4 peers.
  C. PE1 labels the routes it learns from CE1 with the route-target 111:1 and shares them with its VPNv4 peers.
  D. The PE-CE routes between the devices are being exchanged by OSPF
  E. CE1 is supporting CSC.
  A. CE1 must use OSPF to establish a neighbor relationship with PE1.
  D. The PE-CE routes between the devices are being exchanged by OSPF

• Question 25:

  

  Refer to the exhibit. Which statement describes the result of this BGP configuration?

  A. R1 operates using IPv4 and VPNv4 address families.
  B. R1 operates on IPv6 only because the bgp default ipv4-unicast command is missing.
  C. R1 establishes a VPNv4 eBGP relationship with neighbor 192.168.1.1.
  D. R1 establishes an iBGP relationship with peer 192.168.1.1.
  D. R1 establishes an iBGP relationship with peer 192.168.1.1.

• Question 26:

  In a typical service provider environment, which two tools are used to help scale PE router connectivity requirements? (Choose two.)

  A. route reflectors
  B. VPNv4 address family
  C. originator ID
  D. cluster ID
  E. confederations
  A. route reflectors
  E. confederations

• Question 27:

  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?

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

• Question 28:

  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.
  D. All PEs must have the same VRFs configured.

• Question 29:

  What must match in the EVPN and L2VPN configuration mode when configuring EVPN native in a router?

  A. interface
  B. address family
  C. bridge domain
  D. EVI
  D. EVI

• Question 30:

  Which mechanism reduces the network flooding caused by host ARP learning behavior?

  A. ARP suppression
  B. storm control
  C. root guard
  D. BPDU guard
  A. ARP suppression