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Nokia Border Gateway Protocol for Internet Routing

Exam Details

  • Exam Code
    :4A0-102
  • Exam Name
    :Nokia Border Gateway Protocol for Internet Routing
  • Certification
    :Nokia Certifications
  • Vendor
    :Nokia
  • Total Questions
    :152 Q&As
  • Last Updated
    :Mar 28, 2025

Nokia Nokia Certifications 4A0-102 Questions & Answers

  • Question 31:

    Click the exhibit.

    Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between the ISPs?

    A. ISP 1 and ISP 2 have a public transit relationship, while ISP 3 and ISP 4 have a private transit relationship.

    B. ISP 1 and ISP 2 have a private transit relationship, while ISP 3 and ISP 4 have a public transit relationship.

    C. ISP 1 and ISP 2 have a private peering relationship, while ISP 3 and ISP 4 have a public peering relationship.

    D. ISP 1 and ISP 2 have a public peering relationship, while ISP 3 and ISP 4 have a private peering relationship.

  • Question 32:

    Click the exhibit.

    Which of the following statements best describes the BGP sessions within the given network?

    A. The session between AS 65202 and AS 65206 is an iBGP session.

    B. The session between AS 65204 and AS 65206 is an intra-confederation eBGP session.

    C. A BGP session is required between AS 65202 and AS 65204.

    D. The BGP sessions within the member ASs are known as inter-confederation BGP sessions.

  • Question 33:

    Which of the following parameters does NOT have to match for an iBGP session to be successfully established?

    A. BGP version number.

    B. The local AS number.

    C. The Hold Time.

    D. Authentication.

  • Question 34:

    Click the exhibit.

    Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?

    A. Router RA prefers the update received from router RR1.

    B. Router RA prefers the update received from router RR2.

    C. Router RA flags both updates as invalid.

    D. Router RA accepts both updates and flags them as used.

  • Question 35:

    How are policy direction and data flow related on the Alcatel-Lucent 7750 SR?

    A. Import policies affect ingress data flow.

    B. Export policies affect ingress data flow.

    C. Both import and export policies affect ingress data flow.

    D. Policy direction and data flow are independent.

  • Question 36:

    Click the exhibit.

    Router R2 is advertising prefix 192.168.1.0/27 with community "no-advertise" towards AS 65002. Which routers receive an update for that prefix?

    A. Router R3 only.

    B. Routers R3 and R4 only.

    C. Routers R3, R4 and R5 only.

    D. Router R2 does not advertise an update for the prefix.

  • Question 37:

    A confederated AS is comprised of three members. One member is comprised of 4 routers, while the other two members are comprised of 3 routers each. Assuming member ASs are fully meshed and use full mesh iBGP, what is the required number of BGP sessions within the confederation?

    A. 12

    B. 13

    C. 14

    D. 15

  • Question 38:

    Click on the exhibit.

    AS 65540 is using MPLS to provide BGP shortcuts for its iBGP routing. AS 65541 is advertising prefix 192.168.1.0/27 into BGP. Which routers have the BGP update for the advertised prefix in their BGP table?

    A. Routers R1, R2, R3, R4 and R5.

    B. Routers R1and R4 only.

    C. Routers R1, R2, R3 and R4 only.

    D. Routers R1, R4 and R5 only.

  • Question 39:

    Click the exhibit.

    After router A receives the BGP update for the 10.3.3.0/24 prefix, which routers will the route be propagated to?

    A. All routers with which it has a BGP session.

    B. All routers with which it has a BGP session, except the router it received the update from, which is router B.

    C. All routers with which it has a BGP session, except the router it received the update from, which is router C.

    D. All routers with which it has a BGP session, except the router it received the update from, which is router D.

    E. Only eBGP neighbors.

  • Question 40:

    What happens to a route that is rejected by an import policy on an Alcatel-Lucent 7750 SR?

    A. The route is discarded.

    B. The route is kept in the RIB-In, but marked as an invalid route.

    C. The route is moved to the LOC-RIB, but not marked as a used route.

    D. The route is moved to the route table, but not to the FIB.

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