Cisco CCNP 300-515 Questions & Answers

• Question 11:

  What do routers on the network use to avoid routing loops when OSPF is running as the PE-CE routing protocol on a service provider network?

  A. the AS-Override feature

  B. the DN bit with type 3, 5, or 7 LSA

  C. the domain tag for type 2 LSA

  D. sham links to create a super backbone over the service provider network

  Correct Answer: B

• Question 12:

  Refer to the exhibit:

  

  A network engineer is implementing an OSPF configuration Based on the output, which statement is true?

  A. In the ospfv3 1 area 1 ipv4 command, area 0 must be configured instead of area 1.

  B. OSPFv3 does not run for IPv4 on FastEthemet0/0 until IPv6 routing is enabled on the router and IPv6 is enabled on interface Fastfc.thernet0/0

  C. OSPFv3 cannot be configured for IPv4; OSPFv3 works only for IPv6.

  D. IPv6 routing not enabled" is just an informational message and OSPFv3 runs for IPv4 on interface FastEthernet0/0 anyway

  Correct Answer: B

• Question 13:

  Which optional information can be included with an IPv6 ping to support the troubleshooting process?

  A. IPv4 IP address

  B. source MAC address

  C. destination MAC address

  D. IPv6 hostname

  Correct Answer: D

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/configuration/xe-3s/ipv6-xe-36s-book/ip6-mng-apps.html

• Question 14:

  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

  Correct Answer: D

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_basic/configuration/xe-3s/ip6b-xe-3s-book/ip6-icmp-rate-lmt-xe.html

• Question 15:

  

  Refer to the exhibit. PE1 and PE2 are exchanging VPNv4 routes for CE1 and CE2, and PE3 contains the default route to the internet. If the three devices are operating normally, which two conclusions describe this configuration? (Choose two.)

  A. The CE1 and CE2 VRFs can exchange routes only between their respective VRFs on PE1 and PE2.

  B. All three routers must be running a distance-vector routing protocol.

  C. All three routers must be running MP-BGP.

  D. The CE1 and CE2 VRFs can access the default route provided by the Internet VRF.

  E. Only the CE2 VRF can access the default route provided by the Internet VRF.

  Correct Answer: AC

• Question 16:

  Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

  A. route reflectors

  B. route dampening

  C. confederations

  D. AS override

  Correct Answer: D

  Reference: https://community.cisco.com/t5/networking-documents/understanding-bgp-as-override-feature/ta-p/3111967

• Question 17:

  

  Refer to the exhibit. A technician is troubleshooting a connectivity issue and notices that there is no IS-IS adjacency between R1 and R2. What can the technician change to bring the IS-IS adjacency up?

  A. Change R2's net address to be in the same area as R1.

  B. Change R1's is-type to level-2-only

  C. Change R1's net address to be in the same area as R2.

  D. Change R2's configuration to no longer set the overload bit.

  Correct Answer: B

• Question 18:

  

  Refer to the exhibit. While provisioning a new BGP session between the PE and CE router, you issue the as-override command. Which statement describes modification of the prefix before being sent to the CE router (10.10.10.1)?

  A. The fourth AS changes, but no other autonomous systems change.

  B. The first and fourth autonomous systems change.

  C. The second and third autonomous systems change.

  D. The first AS changes, but no other autonomous systems change.

  Correct Answer: D

• Question 19:

  

  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.

  Correct Answer: D

• Question 20:

  

  Refer to the exhibit. Which statement about this command is true?

  A. It must be configured on each PE router to enable the PE routers to receive multicast traffic for this particular MVRF.

  B. It is used to set the designated router on a link using PIM-SM.

  C. It must be configured on the PE and CE router to enable MP-BGP to send labels for CSC.

  D. It is used to set the router that will server as the root bridge for STP.

  Correct Answer: A

  Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg/lsmmldp.html