Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 31:

  Refer to the exhibit.

  

  An engineer working for a private telecommunication company with an employee id: 1234:09:567 implemented this configuration on Router1, what is the effect of it?

  A. Router 1 receives only one best path from neighbor 192.168.1.1

  B. Router 1 sends only one best path to neighbor 192.168.1.1

  C. Router 1 sends up to three paths to neighbor 192.168.1.1 for all routes

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

  Correct Answer: D

• Question 32:

  Refer to the exhibit.

  

  A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

  A. Configure all routers as Level 1 routers.

  B. Remove the link metric for the link from router R1 to router R2.

  C. Change the link metric for the link from router R1 to router R2 to 1.

  D. Configure all routers as Level 1 / Level 2 routers.

  Correct Answer: C

  The default link metric for IS-IS is 10, so changing the link from R1 to R2 to 1 will change the overall metric to R6 to 9 (8+1).

• Question 33:

  Refer to the exhibit.

  

  Company A established BGP sessions with several ISPs. A network engineer at the company must filter out all traffic except for routes that transit AS 152.

  The engineer configured the filtering policy "permit _152S_(_[0.9])" on R1, but after applying the configuration, the engineer notices that other routes are still visible.

  Which action resolves the issue?

  A. Add a second filtering policy in the format ip access-list 1 permit ^152_([0-9]+).

  B. Add a second filtering policy in the format ip prefix-list 1 permit ^152^.

  C. Change the filtering policy to ip explicit-path 1 permit $152^.

  D. Change the filtering policy to ip as-path access-list 1 permit _152_.

  Correct Answer: A

• Question 34:

  Refer to the exhibit.

  

  An engineer is troubleshooting an issue with traffic steering using the color-only automated steering mechanism. BGP is failing to automatically steer traffic into an SR policy with the given color of a route, regardless of the next hop.

  The layer 2 configuration is correct, and the physical connection between the devices is working normally.

  Whch additional command sequence must the engineer add to correct the issue?

  A. Cisco(config)# segment-routingCisco(config-sr)# traffic-engCisco(config-sr-te)# policy P1Cisco(config-sr-te-policy)# color 1 end-point ipv4 0.0.0.0

  B. Cisco(config)# segment-routing traffic-engCisco(config-sr-te)# policy P1Cisco(config-sr-te-policy)# color 1 end-point ipv4 1.1.1.1Cisco(config-sr-te-policy )# autoroute Cisco(config-sr-te-policy-autoroute)# include all

  C. Cisco(config)# segment-routingCisco(config-sr)# traffic-engCisco(config-sr-te)# policy P1Cisco(config-sr-te-policy)# color 1 end ipv4 1.1.1.1Cisco(config-sr-te-policy)# autoroute include all

  D. Cisco# configureCisco(config)# segment-routingCisco(config-sr)# traffic-engCisco(config-sr-te)# policy P1Cisco(config-sr-te-policy)# color 1 end-point

  Correct Answer: A

• Question 35:

  Refer to the exhibit.

  

  Excessive routes are flooding from network 150.0.0.0 into AS100. Internet traffic between AS400 and AS300 is working normally. No route controlling mechanism is applied on incoming and outgoing traffic Which configuration resolves the issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 36:

  Refer to the exhibit.

  

  This network is deployed with all connected links configured to run IS- IS.

  The routing protocol is enacted globally on each router, and the network engineer expects full routing Information to be shared among all routers. R5 is receiving routes from R4 but is missing routes from R1.

  Which action corrects the issue so that all routes are shared among the routers?

  A. Configure R5 in the same area as R1.

  B. Configure all routers to reside in the same area.

  C. Configure R1 and R5 as Level 1/Level 2 routers.

  D. Configure R3 as a Level 1 /Level 2 router.

  Correct Answer: B

• Question 37:

  Refer to the exhibit.

  

  An engineer working for a private telecommunication company with an employee id 4115 46 881 is enabling a segment routing solution with these requirements. A service provider is using the default range for prefix SID. PE1 must allocate the first SID from the default range for the loopback address PE1 and PE2 loopback SID allocation should have a minimum difference of 500.

  Which configuration must be implemented to meet the requirements?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B

• Question 38:

  Refer to the exhibit.

  

  CE1 and CE2 use connectivity over the service provider cloud to reach CE3 In the event of a link failure in the service provider cloud which BGP feature relies on IGP convergence to quickly assist in the installation of a backup path?

  A. BGP graceful restart

  B. BGP route dampening

  C. BGP PIC core

  D. BGP confederations

  Correct Answer: C

• Question 39:

  An engineer warns to map a multicast IP address to a multicast MAC How many bits are used to make the conversion?

  A. high-order 24 bits

  B. higher-order 23 bits

  C. low order 23 bits

  D. lower-order 24 bits

  Correct Answer: C

• Question 40:

  Refer to the exhibit

  

  The branch office in area 10 is connected to HQ via Frame Relay uplinks with bandwidth constraints After a recent implementation of QoS on the R2 and R3 networks the system has been logging %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x224E321, alignment 0 messages To reduce traffic load and memory utilization on R2 and R3 the network engineer configured R1 to announce only one user subnet per location by issuing the summary address 192.168.0.0 255.255.248.0 command en R1 However, the

  engineer noticed that router R2 still has two routes and a summary address from HQ and R3 also has two routes from HQ Which two actions must the engineer take on R1 to fix the issue so that only one route is announced' (Choose two.)

  A. Configure the subnet range with the network command under the IS-IS process.

  B. Configure RI as a Level 1 device.

  C. Redistribute both routes into the ISIS process.

  D. Configure a summary route for Level 1-Level 2 devices.

  E. Configure a summary route for Level 1 devices.

  Correct Answer: DE