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Nokia Virtual Private Routed Networks

Exam Details

  • Exam Code
    :4A0-106
  • Exam Name
    :Nokia Virtual Private Routed Networks
  • Certification
    :Nokia Certifications
  • Vendor
    :Nokia
  • Total Questions
    :208 Q&As
  • Last Updated
    :Apr 16, 2025

Nokia Nokia Certifications 4A0-106 Questions & Answers

  • Question 101:

    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?

    A. eBGP is used for route and label exchange between CSC-CE and CSC-PE routers.

    B. iBGP can be used to distribute routes between CSC-CE and PE routers.

    C. MP-iBGP is used to advertise routes between the CSC-PE routers.

    D. MP-iBGP is used to advertise end-customer and Internet routes directly between the PE routers.

  • Question 102:

    Click the exhibit.

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

    A. In the CSC VPRN, configure an eBGP session between CSC-PE and CSC-CE and use the "advertiselabel vpn-ipv4" CLI command to enable the advertisement of VPN-IPv4 routes.

    B. When the customer carrier uses the same autonomous system number in various sites, use the "loopdetect off" CLI command to disable the loop detection functionality on CSC-CE and PE routers.

    C. On the CSC-PE routers, use the "carrier-carrier-vpn" CLI command to configure the VPRN service as CSC.

    D. 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.

  • Question 103:

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

    A. Within each AS, the ASBR advertises the system addresses of remote PE routers as labeled IPv4 routes.

    B. PE routers in different ASs exchange VPRN routing information directly over MP-eBGP.

    C. Within each AS, MP-iBGP sessions are established to exchange VPN-IPv4 prefixes between the PE routers.

    D. ASBRs exchange the system addresses of PE routers as VPN-IPv4 routes over MP-eBGP.

  • Question 104:

    Click the exhibit.

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

    A. 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.

    B. ASBR1 sends the data packet with one label: the BGP label.

    C. ASBR1 sends the data packet with one label: the service label.

    D. 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.

  • Question 105:

    Click the exhibit.

    For the inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

    A. PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.

    B. ASBR1 pops the LDP and BGP labels and swaps the VPN label.

    C. ASBR2 pops the BGP label and pushes an LDP transport label.

    D. PE2 pops two labels and forwards the unlabeled packet to its destination.

  • Question 106:

    Which of the following is a characteristic of inter-AS model C VPRN?

    A. A data packet destined to a remote AS is encapsulated with three labels within the originating AS.

    B. The ASBR redistributes VPN-IPv4 updates to its ASBR eBGP peers.

    C. PE routers in different ASes exchange IPv4 routes directly between each other using eBGP.

    D. The advertising ASBR assigns a new label to the route before sending it via an MP-eBGP update to its ASBR peer.

  • Question 107:

    Click the exhibit.

    For the inter-AS model C VPRN, which router is configured as shown?

    A. PE1

    B. RR1

    C. ASBR1

    D. ASBR2

  • Question 108:

    Which of the following about inter-AS model B VPRN is TRUE?

    A. The ASBRs use MP-eBGP to peer with each other and exchange IPv4 routes between autonomous systems.

    B. The ASBRs use MP-iBGP to peer with PE routers in their autonomous system and exchange VPN-IPv4 routes.

    C. The ASBRs maintain a mapping of labels for IPv4 routes exchanged between autonomous systems.

    D. The ASBRs require per-VPRN configuration.

  • Question 109:

    Click the exhibit.

    For the inter-AS model B VPRN, which of the following is FALSE when CE2 sends an IP packet to 192.168.1.1?

    A. PE2 pushes one label on the IP packet and forwards it to ASBR2.

    B. ASBR2 forwards the IP packet with one label to ASBR1.

    C. ASBR1 forwards the IP packet with two labels to PE1.

    D. PE1 forwards an unlabeled IP packet to CE1.

  • Question 110:

    Click the exhibit.

    For the inter-AS model B VPRN, which of the following protocols is used to advertise routes between PE1 and ASBR1?

    A. iBGP

    B. eBGP

    C. MP-iBGP

    D. MP-eBGP

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