Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 141:

  Refer to the exhibit.

  

  Which task must you perform on interface g1/0/0 to complete the SSM implementation?

  A. configure OSPFv3

  B. enable CDP

  C. disable IGMP

  D. configure IGMPv3

  Correct Answer: D

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-ssm.html

• Question 142:

  Refer to the exhibit.

  

  Which statement about this configuration is true?

  A. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1

  B. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes

  C. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS

  D. Router 1 receives only the best path from neighbor 192.168.1.1

  Correct Answer: A

• Question 143:

  After you change the IP address on an IOS XR router, you cannot ping the new address.

  Which step did you forget to complete?

  A. commit the configuration

  B. roll back the configuration

  C. merge the configuration

  D. save the running configuration

  Correct Answer: A

• Question 144:

  Which two statements about route reflectors are true? (Choose two.)

  A. Routes received from nonclient peers are reflected to route reflector clients as well as nonclient peers.

  B. Routes received from nonclient peers are reflected to route reflector cluster as well as OSPF peers.

  C. If a router received an iBGP route with the originator-ID attribute set to its own router ID, the route is discarded.

  D. Routes received from a route reflector client is reflected to other clients and nonclient peers.

  E. If a route reflector receives a route with a cluster-list attribute containing a different cluster ID, the route is discarded.

  Correct Answer: CD

  Reference: http://www.networkers-online.com/blog/2009/02/bgp-route-reflector-basics/

• Question 145:

  Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)

  A. All mapped multicast MAC addresses begin with 0x0100.5E

  B. The router performs the mapping before it hands the packet off to a switch

  C. All multicast MAC addresses end with 0x0100.5E

  D. The mapping process may generate overlapping addresses, which can cause receivers to receive unwanted packets

  E. All destination MAC addresses begin with an octet of binary 1s

  Correct Answer: AD

• Question 146:

  You have configured routing policies on a Cisco IOS XR device with routing policy language. Which two statements about the routing policies are true? (Choose two.)

  A. The routing policies affect BGP-related routes only.

  B. If you make edits to an existing routing policy without pasting the full policy into the CLI, the previous policy is overwritten.

  C. You can change an existing routing policy by editing individual statements.

  D. The routing policies are implemented in a sequential manner.

  E. The routing policies are implemented using route maps.

  Correct Answer: CD

• Question 147:

  Refer to the exhibit.

  

  A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry.

  Which factor might explain this issue?

  A. Only the administratively scoped range is permitted

  B. Only ASM is permitted

  C. Only the default SSM range is permitted

  D. Only GLOP is permitted

  Correct Answer: C

• Question 148:

  Refer to the exhibit. How are packets directed through the data plane when SRv6 is implemented?

  

  A. An ordered list of segments is encoded in a routing extension header

  B. The MPLS data plane is used to push labels onto IGP routes

  C. A stack of labels represents an ordered list of segments

  D. The packet is encapsulated with a header and trailer encoding the ordered list of segments

  Correct Answer: A

  Reference: https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKIPM-2249.pdf

• Question 149:

  Refer to the exhibit.

  

  An engineer is addressing an IS-IS design issue which is running within the topology. All links are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet. Which statement about the design is true?

  A. R4 prefer to reach R5 using R1 as the next hop

  B. All links have equal cost if the default metric is used

  C. R5 prefers to use R4 as the next hop for all routes

  D. R1 prefer to use R5 as the next hop to reach R4

  Correct Answer: B

• Question 150:

  For which reason do you deploy BGP confederations within a BGP transit backbone?

  A. to support a larger number of eBGP peer sessions

  B. to increase the number of routes that can be redistributed between the running IGP and BGP

  C. to reduce the number of eBGP routes that must be shared between autonomous systems

  D. to reduce the number of iBGP peering sessions

  Correct Answer: D