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Nokia Nokia Service Routing Certification ✓ Updated May 2026

Nokia OSPF Routing Protocol

Exam Code: 4A0-113
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About the 4A0-113 Exam

The Nokia 4A0-113 OSPF Routing Protocol exam is a specialized certification test designed for network professionals seeking to validate their expertise in Open Shortest Path First (OSPF) routing within Nokia's Service Routing Certification (SRC) framework. This exam focuses on the theoretical and practical aspects of OSPF, including its operation, configuration, and troubleshooting in service provider networks. Candidates will demonstrate a deep understanding of OSPF's link-state routing paradigm, neighbor discovery, link-state advertisement (LSA) types, and the SPF algorithm, specifically as implemented on Nokia's Service Router Operating System (SR OS).

Targeting professionals involved in designing, deploying, and managing IP/MPLS networks, the 4A0-113 exam ensures that certified individuals can effectively implement OSPF to achieve optimal network convergence, scalability, and reliability. The exam covers critical topics such as OSPF areas, route summarization, virtual links, and authentication mechanisms, all tailored to Nokia's unique command-line interface (CLI) and configuration models. As service providers increasingly rely on OSPF for interior gateway routing, this certification validates skills essential for real-world tasks like interconnecting multi-area networks and optimizing routing policies.

Why does this exam matter? In the competitive telecommunications industry, Nokia-certified professionals are sought after for their ability to manage complex routing environments. Passing the 4A0-113 demonstrates proficiency in OSPF—a protocol foundational to modern IP networks—and aligns with the broader Nokia Service Routing Certification path, which includes exams like 4A0-100 and 4A0-103. This certification enhances career prospects for network engineers, architects, and support staff, providing tangible proof of expertise in Nokia's ecosystem, which powers many of the world's largest service provider networks.

Who Should Take the 4A0-113 Exam?

The 4A0-113 exam is intended for network engineers, systems architects, and technical support staff who design, deploy, or maintain IP/MPLS networks using Nokia equipment. Candidates should have foundational knowledge of IP routing and OSPF concepts, typically gained through experience with Nokia Service Routers or equivalent training. Prerequisites include familiarity with Nokia's CLI and basic routing protocols, though no formal certification is required before attempting this exam.

Topics Covered in 4A0-113

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OSPF protocol fundamentals and link-state database
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OSPF neighbor discovery and adjacency formation
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OSPF LSA types and their flooding mechanisms
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OSPF area configuration and route summarization
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OSPF virtual links and their use cases
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OSPF authentication and security configurations
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OSPF route redistribution and policy control
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Troubleshooting OSPF on Nokia SR OS platforms

Preparation Tips for 4A0-113

Study the Nokia SR OS OSPF implementation guide and official Nokia training materials to understand vendor-specific CLI commands and configuration syntax.
Practice configuring OSPF in a lab environment using Nokia VSR (Virtual Service Router) to simulate multi-area topologies, virtual links, and redistribution scenarios.
Focus on mastering OSPF LSA types (Type 1-5) and their propagation rules, as these are heavily tested in the 4A0-113 exam.
Review common OSPF troubleshooting techniques, such as using 'show router ospf neighbor' and 'debug router ospf' commands on Nokia SR OS.
Take practice exams that mirror the 4A0-113 format, emphasizing time management and identifying weak areas in OSPF security and route summarization.

Frequently Asked Questions — 4A0-113

What is the format of the Nokia 4A0-113 exam?

The 4A0-113 exam typically consists of multiple-choice and scenario-based questions, with a duration of 90 minutes. It is proctored and available in both online and test center formats. Candidates should expect questions that test both theoretical knowledge and practical configuration skills specific to Nokia's SR OS.

How many questions are on the 4A0-113 exam?

The exam includes approximately 60 questions, though the exact number may vary. The official Nokia certification page lists the exam as having a variable number of questions, but candidates should prepare for around 60 items covering all OSPF-related topics.

Do I need to pass other exams before taking 4A0-113?

No, the 4A0-113 exam is a standalone certification test within the Nokia Service Routing Certification track. However, it is often taken as part of a broader certification path, such as the Nokia Network Routing Specialist (NRS) I or II, which may require additional exams like 4A0-100 or 4A0-103.

How many questions are in the ExamsTree 4A0-113 study guide?
The ExamsTree 4A0-113 PDF study guide contains 103+ practice questions with detailed answer explanations, all mapped to the official Nokia exam objectives.

Why Choose ExamsTree?

ExamsTree 4A0-113 Study Guide is developed by experienced certification professionals with deep knowledge of Nokia technologies. Our team thoroughly researches each exam domain to provide comprehensive, accurate coverage.

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Exam Details
Vendor Nokia
Questions 103+
Format PDF
Updated 5/24/2026
Cert Nokia Service Routing Certification
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