Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 181:

  Refer to the exhibit.

  

  Routers R1, R2, R3, and R4 are peer routers that reside in different administrative domains. PIM-SM is running in each autonomous system, and EBGP is configured between the peers. A network administrator has just implemented MSDP between the connected peers. When the administrator enabled the MSDP configuration, R1 and R2 failed to establish a peering relationship. All other connected routers successfully established peering sessions. Which action must the engineer take to resolve the issue between R1 and R2?

  A. Implement BGP authentication between the peers.

  B. Configure the peers to be in the same autonomous system.

  C. Change the MSDP authentication method to clear text.

  D. Set the same MSDP password on both peers.

  Correct Answer: D

• Question 182:

  Refer to the exhibit.

  

  Router R1 is expected to receive routes that originate from AS 65547 only. However, R1 is receiving routes from AS 65547 and several other ASs that are directly attached to it. Which change to the AS path permit filter corrects the problem?

  A. Change the regular expression to ^$.

  B. Change the regular expression to ^65547$.

  C. Change the regular expression to .*.

  D. Change the regular expression to _65547_.

  Correct Answer: B

• Question 183:

  Which feature provides service independence in service provider networks?

  A. node SID that identifies the network device

  B. prefix SID that contains router hops toward the destination

  C. adjacency SID that represents a path between the routers

  D. binding SID that is used to stitch different domains

  Correct Answer: A

• Question 184:

  The operator must leverage automated steering and coloring with the design. Which two elements from an SR Policy tuple are used for automated steering inside of the network? (Choose two.)

  A. color

  B. candidate labels

  C. headend

  D. endpoint

  E. CM paths

  Correct Answer: AD

• Question 185:

  Which IPv6 prefix format defines the destination of a dynamic 6to4 tunnel?

  A. 2001:db8::/32

  B. 2002::/16

  C. fe80::/10

  D. ff00::/8

  Correct Answer: B

• Question 186:

  Refer to the exhibit.

  

  Users connected to an application on 1.1.1.1 via routers CE1 and CE2 are complaining of frequent disconnections. While troubleshooting the issue, a network engineer with an employee ID: 1234:56:789 determined that the application itself is working normally, but the link connected to the 1.1.1.1 application is flapping. The users on CE1 and CE2 are accessing applications on 2.2.2.2 without difficulty. Which action resolves the issue?

  A. Enable passive interface on the router R3 Loopback1 interface.

  B. Disable split horizon on router R2.

  C. Enable route dampening on routers R1 and R2.

  D. Redistribute CE1 routes on router R2.

  Correct Answer: C

• Question 187:

  Refer to the exhibit.

  

  A network engineer is investigating a report of packet drops in an application running on a server connected to PE2. The engineer determined that:

  1.

  The OSPF adjacency in area 0 is up, and it is learning the loopback addresses of all routers in area 0.

  2.

  Traffic from users connected to PE1 to the application is also passing normally.

  3.

  Packets from PE2 back to PE1 are being dropped.

  Which action resolves the issue?

  A. RR2(config)# router bgp 100RR2(config-router)# redistribute ospf 100

  B. RR1(config)# router bgp 100RR1(config-router)# redistribute ospf 100

  C. RR1(config)# router bgp 100RR1(config-router)# neighbor 10.10.30.1 send-label

  D. RR2(config)# router bgp 100RR2(config-router)# no neighbor 10.10.20.1 send-label

  Correct Answer: C

• Question 188:

  What is the difference between RPL and route-maps?

  A. Unlike RPL, route-maps are supported with IPv4 address families only.

  B. Unlike route-maps, only RPL supports extcommunity sets to group extended communities.

  C. Unlike route-maps, only RPL is designed for bulk configuration of multiple devices.

  D. Unlike RPL, route-maps are designed for BGP protocol only.

  Correct Answer: C

• Question 189:

  Refer to the exhibit.

  

  A network engineer is enabling a segment routing solution with these requirements:

  1.

  A service provider is using the default and nondefault SID range for interface allocation.

  2.

  192.168.10.0/30 interface should add an index value of 20 SID from the default range.

  3.

  192.168.30.0/30 interface should use a nondefault range and index value of 50. Which configuration must be implemented to meet the requirements?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 190:

  An engineer with an employee ID: 4535:15:507 must implement PIM-SSM in the network to support a new multicast messaging service. All the routers in the network run a distance vector routing protocol. Unicast routing is established on the network and is working normally. What must the engineer enable to continue the implementation process?

  A. IGMPv3 on all interfaces that participate in multicast

  B. PIM RP feature on the network

  C. PIM dense mode on all devices on the network

  D. PIM dense mode and IGMPv2 on all interfaces that participate in multicast

  Correct Answer: A