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Free 4A0-106 Exam Braindumps
Nokia Virtual Private Routed Networks Questions 106–110 (page: 23)

Updated On: 9-Feb-2026
Page 23 of 44
PDF with 219 Questions

Click the exhibit.



For the inter-AS model C VPRN, which of the following statements about a data packet sent from CE1 toCE2isTRUE?

  1. PE1 sends the data packet with three labels: the bottom label is a service label, the middle label is a BGP label, and the top label is an LDP label.
  2. ASBR1 sends the data packet with one label: the BGP label.
  3. ASBR1 sends the data packet with one label: the service label.
  4. ASBR2 sends the data packet with three labels: the bottom label is a service label, the middle label is a BGP label, and the top label is an LDP label.

Answer(s): A



Which of the following about inter-AS model C VPRNs is FALSE?

  1. Within each AS, the ASBR advertises the system addresses of remote PE routers as labeled IPv4 routes.
  2. PE routers in different ASs exchange VPRN routing information directly over MP-eBGP.
  3. Within each AS, MP-iBGP sessions are established to exchange VPN-IPv4 prefixes between the PE routers.
  4. ASBRs exchange the system addresses of PE routers as VPN-IPv4 routes over MP-eBGP.

Answer(s): D



Click the exhibit.



A Carrier Supporting Carrier (CSC) VPRN is configured on an Nokia 7750 SR for a customer carrier offering VPRN services.
Which of the following about this configuration is FALSE?

  1. In the CSC VPRN, configure an eBGP session between CSC-PE and CSC-CE and use the "advertise- label vpn-ipv4" CLI command to enable the advertisement of VPN-IPv4 routes.
  2. When the customer carrier uses the same autonomous system number in various sites, use the "loop-detect off" CLI command to disable the loop detection functionality on CSC-CE and PE routers.
  3. On the CSC-PE routers, use the "carrier-carrier-vpn" CLI command to configure the VPRN service as CS
  4. Configure an iBGP session between PE1 and PE2 and use the "family vpn-ipv4" CLI command to directly exchange end-customer routes learned from CE1 and CE2.

Answer(s): A



For Carrier Supporting Carrier (CSC) VPRN, which of the following is NOT applicable to both types of customer carriers: BGP/MPLS service providers and Internet service providers?

  1. eBGP is used for route and label exchange between CSC-CE and CSC-PE routers.
  2. iBGP can be used to distribute routes between CSC-CE and PE routers.
  3. MP-iBGP is used to advertise routes between the CSC-PE routers.
  4. MP-iBGP is used to advertise end-customer and Internet routes directly between the PE routers.

Answer(s): D



For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?

  1. All traffic exchanged between end-customers is carried over a single CSC VRF.
  2. Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers' routes.
  3. The customer carrier network can be a pure IP network.
  4. MPLS can be used in the customer carrier network to improve scalability.

Answer(s): B



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