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One buyer, three preferences — all accommodated. Prep4away offers the 4A0-116 materials in three versions, so whether you study on paper, PC, or any device, the same expert-verified Nokia Segment Routing content meets you there in 2026.

Nokia 4A0-116 Exam Overview:

Certification Vendor:Nokia
Exam Name:Nokia Segment Routing Exam
Exam Number:4A0-116
Certificate Validity Period:3 years
Related Certifications:Nokia SR Implementation Specialist
Nokia Service Routing Architect
Available Languages:English
Exam Price:125 USD
Passing Score:70%
Exam Format:Multiple Choice, Scenario-based Questions
Real Exam Qty:40
Exam Duration:90 minutes
Recommended Training:Nokia Segment Routing Course
Exam Registration:Nokia Official Exam Page
Pearson VUE Registration
Sample Questions: DOWNLOAD DEMO
Exam Way:Online proctored or onsite testing center via Pearson VUE
Pre Condition:No mandatory prerequisites; recommended knowledge of IS-IS, OSPF, and MPLS protocols
Official Syllabus URL:https://www.nokia.com/networks/training/src/exams/segment-routing/

Nokia 4A0-116 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Segment Routing Traffic Engineering (SR-TE)25%- Path Computation Element (PCE) integration
  • 1. Centralized path control
    • 2. PCEP protocol operation
      - SR-TE LSP establishment and operation
      • 1. Path calculation and constraint-based routing
        • 2. Flexible Algorithm (Flex-Algo)
          Topic 2: Segment Routing Fast Reroute20%- BFD and failure detection
          • 1. Seamless BFD for SR paths
            • 2. FRR activation and switchover
              - Loop-Free Alternate (LFA) protection
              • 1. Topology-independent LFA
                • 2. Standard LFA, Remote LFA, D-LFA
                  Topic 3: Introduction to Segment Routing20%- Segment Routing concepts and terminology
                  • 1. Segment ID (SID) and label mapping
                    • 2. Comparison with LDP and RSVP-TE
                      • 3. Stateless forwarding principle
                        Topic 4: SRv6 Fundamentals10%- SRv6 header structure
                        • 1. SRv6 deployment use cases
                          • 2. IPv6 SID function
                            Topic 5: SR-MPLS Control Plane25%- IS-IS extensions for SR
                            • 1. Prefix SID and Adjacency SID advertisement
                              • 2. Segment routing capability and sub-TLVs
                                - OSPF extensions for SR
                                • 1. OSPFv2/v3 SR support
                                  • 2. SID allocation and propagation

                                    From Anxiety to Action: 4A0-116 Facts You Need

                                    Per the latest exam information, the 4A0-116 exam presents 40 questions in 90 minutes minutes. Knowing the format precisely removes one major source of exam-day anxiety.

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                                    Nokia recommends the following official training resources:

                                    Choose a course that matches your starting point, then reinforce it with steady question practice.

                                    The Nokia Segment Routing blueprint covers these core domains:

                                    • Segment Routing Fast Reroute (20%)
                                    • Segment Routing Traffic Engineering (SR-TE) (25%)
                                    • SR-MPLS Control Plane (25%)

                                    The official outline lists further domains, all covered in our question bank.

                                    Nokia publishes these prerequisites for the Nokia Segment Routing: No mandatory prerequisites; recommended knowledge of IS-IS, OSPF, and MPLS protocols.

                                    Check the authoritative wording on the official certification page before registering.

                                    At present, passing the 4A0-116 exam requires 70%, and the registration fee is 125 USD. Both are set by Nokia and can change — confirm them on the official site when you book.

                                    Use the official registration channels below:

                                    Select a test center or online session, and secure your date early for the best availability.

                                    Written, clear, and honored. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims are refunded in full within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. If you prefer, exchange your product for two others of equal value at no charge.

                                    Nokia Segment Routing Sample Questions:

                                    Which of the following is NOT a valid option to steer traffic into a flex-algo segment-routing tunnel?

                                    • A. Configuring and applying a VRF import policy to a VPRN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.
                                    • B. Specifying the flex-algo instance ID as an additional TE constraint for an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.
                                    • C. Using a flex-algo Node-SID as an explicit hop in the path definition of an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.
                                    • D. Configuring and applying a VSI import policy to an EVPN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.
                                    Reveal Solution  Discussion  0

                                    Correct Answer: D  🗳️

                                    Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).

                                    Based on the exhibit, and given that the system IP address of router RIO is 10.10.10.10, which of the following statements is FALSE?

                                    • A. The Node-SID assigned to router RIO for flex-algo instance 129 is 524338.
                                    • B. Router RIO participates in flex-algo instance 130.
                                    • C. The underlying routing protocol being used in the network for segment routing is IS-IS.
                                    • D. Router Rl participates in at least two flex-algo instances.
                                    Reveal Solution  Discussion  0

                                    Correct Answer: A  🗳️

                                    Which of the following statements about path definitions is FALSE?

                                    • A. A loose hop is one that does not have to be directly adjacent to the previous hop in the path list
                                    • B. Once a path is associated with an LSP, it cannot be used by other LSPs.
                                    • C. In addition to the hops defined in the path list, the head-end and tail-end routers are implicitly added.
                                    • D. The path hops can be defined by either the system or physical interface IP address.
                                    Reveal Solution  Discussion  0

                                    Correct Answer: D  🗳️

                                    Which of the following statements about Segment Routing tunnels is FALSE?

                                    • A. A Segment Routing tunnel can be defined by a combination of Node-SIDs and Adjacency-SIDs.
                                    • B. A Segment Routing tunnel can be defined by multiple Node-SIDs.
                                    • C. A Segment Routing tunnel defined by a Node-SID uses the shortest IGP Path.
                                    • D. For a Segment Routing tunnel, an intermediate router will always forward the packet based on the best IGP path.
                                    Reveal Solution  Discussion  0

                                    Correct Answer: D  🗳️

                                    Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).

                                    To create a flex-algo instance in a network, which of the following configuration steps is mandatory?

                                    • A. Configuring LSPs between every pair of PE routers.
                                    • B. Configuring the proper values for the shared-risk link groups (SRLGs) that will define the flex-algo topology.
                                    • C. Specifying whether the LSP paths will be computed locally or by an external path computation element (PCE).
                                    • D. Configuring at least one router in the network to create and advertise the flex-algo definition.
                                    Reveal Solution  Discussion  0

                                    Correct Answer: D  🗳️

                                    Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).

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