Cisco CCNP Service Provider 350-501 Questions & Answers

• Question 421:

  Refer to the exhibit.

  

  You are configuring an administrative domain in the given multi-vendor environment with PIM-SM. Which feature can you implement so that devices can dynamically learn the RP?

  A. BSR

  B. BIDIP-PIM

  C. Auto-RP

  D. SSM

  Correct Answer: A

  BSR is a standard and included in PIMv2, unlike AutoRP which is a Cisco proprietary protocol. Although Auto-RP has been adopted by some vendors, it's still not an "industry standard"

• Question 422:

  Refer to the exhibit.

  

  Which command is used to complete this configuration for QoS class-based marking?

  A. PE-A(config-pmap-c)#set dscp ef B. PE-A(config-pmap-c)#priority

  C. PE-A(config-pmap-c)#random-detect

  D. PE-A(config-pmap-c)#fair-queue

  Correct Answer: A

• Question 423:

  Refer to the exhibit.

  

  If router A is the RP, which PIM mode can you configure so that devices will send multicast traffic toward the RP?

  A. PIM-SM

  B. BIDIR-PIM

  C. PIM-SSM

  D. PIM-DM

  Correct Answer: B

• Question 424:

  Refer to the exhibit.

  

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

  A. It marks packets for end-to-end QoS policy enforcement across the network.

  B. QoS group marking occurs on the ingress.

  C. The QoS group numbering corresponds to priority level.

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

  E. It cannot be used with priority traffic class.

  Correct Answer: BD

• Question 425:

  Refer to the exhibit.

  

  A network engineer is implementing a BGP routing policy. Which effect of this configuration is true?

  A. All traffic that matches acl10 is allowed without any change to its local-preference.

  B. All traffic that matches acl10 is dropped without any change to its local-preference.

  C. If traffic matches acl10, it is allowed and its local-preference is set to 300.

  D. All traffic is assigned a local-preference of 300 regardless of its destination.

  Correct Answer: A

• Question 426:

  Refer to the exhibit.

  

  Which statement describes the effect of this configuration?

  A. It matches HTTP traffic for use in a policy map.

  B. It applies a service policy to all interfaces remarking HTTP traffic.

  C. It creates an ACL named WEB that filters HTTP traffic.

  D. It modifies the default policy map to allow all HTTP traffic through the router.

  Correct Answer: A

• Question 427:

  A regional MPLS VPN provider operates in two regions and wants to provide MPLS L3VPN service for a customer with two sites in these separate locations. The VPN provider approaches another organization to provide backbone carrier services so that the provider can connect to these two locations.

  Which statement about this scenario is true?

  A. When edge routers at different regional sites are connected over the global carrier backbone, MP-eBGP must run between the routers to exchange the customer VPNv4 routes.

  B. When eBGP is used for label exchange using the send-label option, MPLS-BGP forwarding is configured under the global ABC CSC PE-to-CE interface.

  C. When BGP is used for both route and label exchange, the neighbor a.b.c.d send-label command is used under the address-family VPNv4 command mode.

  D. When IGP is used for route exchange and LDP for label exchange, MPLS is enabled only on the VRF interface on the backbone-carrier PE side.

  Correct Answer: B

• Question 428:

  A router RP is configured to perform MPLS LDP graceful restart.

  Which three steps are included when the RP sends an LDP initialization message to a neighbor to establish an LDP session? (Choose three.)

  A. Learn from Neighbor (N) flag, set to 1

  B. Recovery Time field

  C. Type-9 LSA

  D. Reconnect Timeout field

  E. Graceful restart capability in OPEN message

  F. Learn from Network (L) flag, set to 1

  Correct Answer: BDF

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ha/configuration/xe-16-8/mp-ha-xe-16-8-book/nsf-sso-mpls-ldp-and-ldp-graceful-restart.html

• Question 429:

  Refer to the exhibit.

  

  Which statement about this configuration is true?

  A. It requires a dynamic Cisco MPLS TE path to be configured for the tunnel to run.

  B. It requires OSPF to also be running to have optimized Cisco MPLS TE tunnels.

  C. It is the configuration for the head-end router of a Cisco MPLS TE tunnel with segment routing.

  D. It requires an explicit Cisco MPLS TE path to be configured for the tunnel to run.

  Correct Answer: C

• Question 430:

  Which statement about segment routing prefix segments is true?

  A. It is the longest path to a node.

  B. It is linked to an adjacency SID that is globally unique within the router.

  C. It is linked to a prefix SID that is globally unique within segment routing domain.

  D. It requires using EIGRP to operate.

  Correct Answer: C

  Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_010.pdf