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Implementing Cisco Service Provider VPN Services (SPVI) Questions 16–20 (page: 5)

Updated On: 9-Feb-2026

While configuring the VRF Selection feature, you get an error message after typing the below statement:

Router(config)#no vrf selection source 172.16.0.0 255.255.0.0 vrf VRF1

Which action caused this message?

  1. the entry of an inconsistent IP address and mask for VRF Selection
  2. an attempt to configure a VRF instance on an interface that already has VRF Selection configured
  3. an attempt to remove a VRF Selection entry that does not exist
  4. an attempt to configure a VRF Selection table that does not exist

Answer(s): C


Reference:

https://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2sz/feature/guide/122szvrf.html



Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)

  1. cluster ID
  2. local preference
  3. origin
  4. originator ID
  5. AS_PATH

Answer(s): A,D


Reference:

https://www.ciscopress.com/articles/article.asp?p=2756480&seqNum=10



An engineer needs to improve MPLS network management by implementing a set of tools to support the NOC engineers in troubleshooting network failures. Which feature should the engineer implement to check the connectivity of the MPLS LSP between the ingress and egress PE routers?

  1. MPLS OAM
  2. MPLS-TP
  3. LDP autodiscovery
  4. extended ping

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/mpls/configuration/guide/b-mpls-cg53x-asr9k/b-mpls-cg53x-asr9k_chapter_01000.html



Refer to the exhibit.


A network operator is implementing EVPN IRB on PE1. Which two command placements enable the advertisement of Type 2 routes and what information do Type 2 routes contain? (Choose two.)

  1. The operator adds in “host-routing” under the VRF EVPN.
  2. Type 2 routes contain MAC/IP information.
  3. Type 2 routes contain Ethernet Auto-Discovery information.
  4. The operator adds in “host-routing” under the BVI651 interface.
  5. Type 2 routes contain inclusive source-specific multicast route information.

Answer(s): B,D


Reference:

https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/vpn/61x/b-ncs5500-l2vpn-configuration-guide-61x/b-ncs5500-l2vpn-configuration-guide-61x_chapter_01010.html



You try to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured, but you receive an error.

Which action must you take to correct the problem?

  1. Change the source IP address.
  2. Add the IP address to the VRF table.
  3. Remove the VRF from the interface.
  4. Configure static routes for the VRF.

Answer(s): C


Reference:

https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.html



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