Cisco CCNP Service Provider 350-501 Questions & Answers

• Question 171:

  Refer to the exhibit.

  

  After a networking team configured this MPLS topology, the supervisor wants to view MPLS labels to verify the path that packets take from router R1 to router R7 The team already Issued an ICMP ping to verify connectivity between the devices.

  Which task must the team perform to allow the supervisor to view the label switch path?

  A. Configure MPLS TE to display the labels in the stack between the head and tail-end routers

  B. Implement MPLS LDP to assign labels to all the routes in the transit path.

  C. Configure MPLS LDP Sync to sync labels from the routing table to the MPLS forwarding table.

  D. Implement MPLS OAM to display the labels for each hop along the path

  Correct Answer: D

• Question 172:

  Refer to me exhibit.

  router[config]# router ospf 11 router[config-if]# passive-interface default

  An engineer started lo configure a router for OSPF. Which configuration must me engineer perform on me router without changing any interface configuration so that the router establishes an OSPF neighbor relationship with its peer?

  A. router(config)# router ospf 11router(config-if)# no passive-interface ethernet 1/1

  B. router(config)# interface ethernet 1/1router(config-if)# no shutdown

  C. router(config)# interface ethernet 1/1router(config-if)# ip ospaf hello-interval

  D. router(config)# interface ethernet 1/1router(config-if)# ip ospf priority 0

  Correct Answer: A

• Question 173:

  Refer to the exhibit.

  

  router(config)# route-map blackhole-triggerrouter(config-route-map)# match tag 777router(config-route-map)# set ip next-hop 10.0.1.1router(config-route-map)# set origin igprouter{config-route-map)# set community no-export

  EIGRP a running across the core lo exchange Internal routes, and each router maintains 6GP adjacency with the other routers on the network. An operator has configured static routes on the edge routers R1 and R2 for IP address 10.0.1.1. which is used as a black hole route as shown.

  Which configuration should the operator Implement to me management rouler to create a route map that will redistribute lagged static routes into BGP and create a static route to blackhole traffic with tag 777 that Is destined to server at 192.168.10.100?

  A. router(config)# router bgp 55100router(config-router)# redistribute static route-map blackhole-trigger

  router(config)# ip route 10.0.1.1 255.255.255.255 Null0 tag 777

  B. router(config)# router bgp 55100router(config-router)# redistribute static route-map blackhole-trigger

  router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777

  C. router(config)# router bgp 55100router(config-router)# redistribute connected

  router(config)# ip route 192.168.10.100 255.255.255.255 tag 777

  D. router(config)# router bgp 55100router(config-router)# redistribute connected route-map blackhole-trigger

  router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777

  Correct Answer: B

  Reference: https://www.cisco.com/c/dam/en_us/about/security/intelligence/blackhole.pdf

• Question 174:

  An engineer Is implementing NSR with OSPF on a large campus that requires high availability.

  Which task must an engineer perform to complete the process with minimal disruption to traffic?

  A. Reset OSPF neighbour sessions to maintain state Information during router switchover

  B. Configure the device to repopulate state information using routing updates received from the BDR

  C. increase the keepalive interval on the OSPF neighbours so that traffic continues to pass during the switchover.

  D. Ensure that the dual HP has synchronized their state information before performing the switchover operation.

  Correct Answer: D

• Question 175:

  Refer to the exhibit:

  

  A network engineer is implementing QoS services. Which two statements about the QoS- group keyword on Cisco IOS XR 3re true? (Choose two )

  A. The QoS group numbering corresponds to priority level

  B. QoS group marking occurs on the ingress

  C. It marks packets for end to end QoS pokey enforcement across the network

  D. QoS group can be used in fabric QoS policy as a match criteria

  E. It cannot be used with priority traffic class

  Correct Answer: BD

  Fabric QoS policy class maps are restricted to matching a subset of these classification options:

  1.

  precedence

  2.

  dscp

  3.

  qos-group

  4.

  discard-class

  5.

  mpls experimental topmost

  https://www.cisco.com/c/en/us/td/docs/routers/ncs6000/software/ncs6k_r6-1/qos/configuration/guide/b-qos-cg-ncs6k-61x/b-qos-cg-ncs6k-61x_chapter_0110.html

• Question 176:

  Refer to the exhibit.

  

  Router P4 and P5 receive the 0.0.0.0/0 route from the ISP via eBGP peering P4 is the primary Internet gateway router, and P5 is its Backup. P5 is already advertising a default route into OSPF domain. Which configuration must Be applied to P4 so that advertises a default route Into OSPF and Becomes me primary internet gateway for the network?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 177:

  Refer the exhibit.

  

  Users on a network connected to router R3 report slow speeds when they connect to the server connected to R2. After analyzing traffic on the network, a network engineer identified congestion on the link between R2 and R3 as the cause. Which QoS service must the engineer implement to drop traffic on the link when it exceeds a configured threshold?

  A. first-in, first-out

  B. traffic shaping

  C. class-based weighted fair queueing

  D. traffic policing

  Correct Answer: D

  https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html

• Question 178:

  Refer to the exhibit.

  

  An engineer is configuring IS-IS on ISP network.

  Which IS-IS configuration must an engineer implement on router AGG1 so that it establishes connectivity to router AGG6 via the BB3 core router?

  A. router isis 100 metric-style narrowinterface GigabitEthernet 3isis metric 10 level-2

  B. router isis 100 metric-style wideinterface GigabitEthernet 3isis metric 1500 level-2

  C. router isis 100 metric-style narrowinterface GigabitEthernet 3isis metric 10 level-1

  D. router isis 100 metric-style wideinterface GigabitEthernet 3isis metric 1500 level-1

  Correct Answer: C

• Question 179:

  Refer to the exhibit.

  

  An engineer has started to configure a router for OSPF, as shown Which configuration must an engineer apply on the network so that area 15 traffic from R5 to R1 will prefer the route through R4?

  A. Place the link between R3 and R5 in a stub area to force traffic to use the route through R4.

  B. Increase the cost on the link between R2 and R4, to influence the path over R3 and R4.

  C. Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred.

  D. Implement a sham link on the between R3 and R2 to extend area 0 area 15.

  Correct Answer: C

• Question 180:

  Refer to the exhibit an engineer working for a private telecommunication company with an employee Id: 4065:96:080 upgrades the WAN link between routers ASBR-101 and ASBR- 201 to 1Gb by Installing a new physical connection between the Gi3 Interfaces.

  

  Which BGP attribute must the engineer configure on ASBR-201 so that the existing WAN link on Gi2 Is maintained as a backup?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C