Cisco CCNP Service Provider 350-501 Questions & Answers

• Question 271:

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

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

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

  D. Increase the cost on the link between R2 and R3 to a value higher than the link between R2 and R4, to influence the path over R3 and R4.

  Correct Answer: B

  After doing an easy lab I can say for certain that the answer is B. To add some more information to clarify, R3 wil ALWAYS prefer the INTRA-area link to R2, no matter the cost assigned to the interface. So it is until the inter-area 0 link between R2-R4 is configured as multiarea also in area 15, that the cost of the interface comes into play.

  https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/118879-configure-ospf-00.html

• Question 272:

  Refer to the exhibit.

  

  A network operator is attempting to configure an IS-IS adjacency between two routers, but the adjacency cannot be established. To troubleshoot the problem, the operator collects this debugging output. Which interfaces are misconfigured on these routers?

  A. The R2 interface is configured as point-to-point, and the peer router interface is configured as multipoint.

  B. The R2 interface is configured as Level 1 only, and the peer router interface is configured as Level 2 only.

  C. The peer router interface is configured as point-to-point, and the R2 interface is configured as multipoint.

  D. The peer router interface is configured as Level 1 only, and the R2 interface is configured as Level 2 only.

  Correct Answer: B

  R2 is Sending L1 and received from Peer L2.

• Question 273:

  Refer to the exhibit.

  

  Router BRDR-1 is configured to receive the 0.0.0.0/0 and 172.17.1.0/24 networks via BGP and advertise them into OSPF area 0. An engineer has noticed that the OSPF domain is receiving only the 172.17.1.0/24 route and default route 0.0.0.0/0 is still missing. Which configuration must an engineer apply to resolve the problem?

  A. router ospf 1 redistribute bgp 65001 metric 100 route-policy BGP-TO-OSPF end

  B. router ospf 1 default-information originate end

  C. router ospf 1 default-metric 100 end

  D. router ospf 1 default-information originate always end

  Correct Answer: B

• Question 274:

  Refer to the exhibit.

  

  Router R1 is reporting that its BGP neighbor adjacency to router R2 is down, but its state is Active as shown. Which configuration must be applied to routers R1 and R2 to fix the problem?

  A. R1

  router bgp 5400

  neighbor 11.11.11.11 remote-as 5400

  neighbor 11.11.11.11 update-source Loopback0

  R2

  router bgp 5400

  neighbor 11.11.11.12 remote-as 5400

  neighbor 11.11.11.12 update-source Loopback0

  B. R1

  router bgp 5400

  neighbor 2.2.2.2 remote-as 5400

  neighbor 2.2.2.2 update-source Loopback0

  R2

  router bgp 5400

  neighbor 1.1.1.1 remote-as 5400

  neighbor 1.1.1.1 update-source Loopback0

  C. R1

  router bgp 5400

  neighbor 2.2.2.2 remote-as 5400

  R2

  router bgp 5400

  neighbor 1.1.1.1 remote-as 5400

  D. R1

  router bgp 5400

  neighbor 1.1.1.1 remote-as 5400

  neighbor 1.1.1.1 update-source Loopback0

  R2

  router bgp 5400

  neighbor 2.2.2.2 remote-as 5400

  neighbor 2.2.2.2 update-source Loopback0

  Correct Answer: D

• Question 275:

  Refer to the exhibit.

  

  Router 1 and router 2 are running IBGP, and router 2 and router 3 are running OSPF Area 0. Router 1 is advertising loopback interfaces Lo 0 and Lo 2, and router 2 is redistributing BGP into OSPF Area 0. Which configuration must an administrator apply so that router 2 uses a route map to redistribute only the internal route from Lo 2?

  A. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.22/32

  router bgp 100

  bgp redistribute-internal

  route-map BGP-To-OSPF permit 10

  match ip address prefix-list BGP-to-ospf

  router ospf 1

  redistribute bgp 100 metric 100 metric-type 1 subnets route-map BGP-To-OSPF

  B. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24

  router bgp 100

  bgp redistribute-static

  route-map BGP-To-OSPF permit 10

  match ip address prefix-list BGP-to-ospf

  router ospf 1

  redistribute bgp 100 metric-type 2 route-map BGP-To-OSPF

  C. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24

  router map BGP-To-OSPF permit 10

  match ip address prefix-list BGP-to-ospf

  router ospf 1

  redistribute bgp 100 metric 100 metric-type 1 subnet route-map BGP-To-OSPF

  D. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24

  router map BGP-To-OSPF permit 10

  match ip address prefix-list BGP-to-ospf

  router ospf 1

  redistribute bgp 100 route-map BGP-To-OSPF

  Correct Answer: A

• Question 276:

  Refer to the exhibit.

  

  An engineer is configuring path selection on router R1 for two ASNs as shown. Which additional task must the engineer perform on Router 1 so that all outbound traffic utilizes the link between R1 and R3 to reach ASN 4567?

  A. Configure a low weight on the peer to ASN 4567.

  B. Configure a high weight on the peer to ASN 4567.

  C. Configure an AS path prepend on the peer to ASN 4567.

  D. Configure a high med on the peer to ASN 4567.

  Correct Answer: B

  To force the traffic exit point towards link R1-R3 we have to configure a high Weight value to AS4567. The Weight attribute can be used as an alternative to the Local Preference attribute and it has "local meaning" to the R1.

• Question 277:

  Refer to the exhibit.

  

  CE1 and CE2 require connectivity to the internet through the ISP connected to PE3. What should an engineer configure to complete this task?

  A. CE1 and CE2 must be configured with a route distinguisher in the PE1 VRF that dynamically imports the route from the internet.

  B. CE1 and CE2 must be configured to use a static default route with a next-hop of PE3 to reach internet routes.

  C. PE1 must be configured with an import route target in the CE1 VRF that matches the export route target for the internet VRF on PE3.

  D. PE2 must be configured to serve as a route reflector for PE3 routes learned from the internet. PE2 then shares the routes with CE1 and CE2.

  Correct Answer: C

• Question 278:

  An engineer is implementing a route map to support redistribution within BGP. The route map must be configured to permit all unmatched routes. Which action must the engineer perform to complete this task?

  A. Include a permit statement as the first entry.

  B. Remove the implicit deny entry.

  C. Include at least one explicit deny statement.

  D. Include a permit statement as the last entry.

  Correct Answer: D

• Question 279:

  Refer to the exhibit.

  

  If RC is a stub router, which entry must be injected so that it will send traffic outside the OSPF domain?

  A. more specific route

  B. virtual link between RB and RC

  C. sham link

  D. default route

  Correct Answer: D

• Question 280:

  Refer to the exhibit.

  

  Which BGP attribute should be manipulated to have CE1 use PE1 as the primary path to the internet?

  A. The local preference attribute should be manipulated on PE2 on inbound and outbound routes advertised to CE1.

  B. The origin of all routes should be modified on each router on inbound and outbound routes advertised to CE1.

  C. The MED attribute should be manipulated on CE1 on inbound routes from PE1.

  D. The weight attribute should be manipulated on PE1 on outbound routes advertised to CE1.

  Correct Answer: C