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Nokia Nokia Network Routing Specialist II (NRS II) ✓ Updated May 2026

Nokia NRS II Composite Exam: OSPF version

Exam Code: 4A0-C04
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About the 4A0-C04 Exam

The Nokia 4A0-C04 exam, also known as the Nokia NRS II Composite Exam: OSPF version, is a critical certification for network professionals aiming to validate advanced routing skills. This exam focuses specifically on the Open Shortest Path First (OSPF) protocol, a core component of modern IP networks. It is designed for individuals who have foundational knowledge in networking and wish to specialize in OSPF-based routing, which is widely used in service provider and enterprise environments. By passing this exam, candidates demonstrate their ability to configure, troubleshoot, and optimize OSPF in complex network scenarios, making them valuable assets to organizations relying on Nokia's Alcatel-Lucent Service Routing Architectures.

Targeted at network engineers, architects, and administrators, the 4A0-C04 exam validates expertise in OSPFv2 and OSPFv3, including areas such as route redistribution, virtual links, and stub areas. It is part of the Nokia Network Routing Specialist II (NRS II) certification path, which is recognized globally for its rigorous standards. Real-world use cases include designing resilient OSPF networks for telecommunications providers, ensuring fast convergence during failures, and implementing multi-area topologies to scale large networks. This certification is particularly relevant for professionals working with Nokia routers in IP/MPLS environments, where OSPF is often the primary IGP.

Why does this exam matter in the industry? As networks grow in complexity, the demand for specialists who can manage OSPF efficiently increases. The 4A0-C04 exam sets a benchmark for OSPF proficiency, directly aligning with job roles that require deep protocol knowledge. By earning this certification, professionals enhance their credibility and career prospects, as Nokia certifications are highly respected in the telecom and enterprise sectors. The exam covers 298 practice Q&As, ensuring comprehensive preparation. Ultimately, this certification helps organizations maintain high-performance networks while enabling individuals to stay competitive in a rapidly evolving field.

Who Should Take the 4A0-C04 Exam?

The 4A0-C04 exam is ideal for network engineers, architects, and administrators who have at least one year of experience in routing and switching. Prerequisites include a basic understanding of IP networking and familiarity with Nokia's service router platforms. This exam is particularly suited for professionals pursuing the Nokia NRS II certification, as it builds on foundational knowledge from the NRS I level.

Topics Covered in 4A0-C04

📊
OSPFv2 fundamentals and operation
📜
OSPFv3 for IPv6 support
💡
Multi-area OSPF design and configuration
🛡️
Route redistribution between protocols
🏗️
Virtual links and stub areas
🔧
OSPF neighbor state machine and adjacencies
⚖️
LSA types and their propagation
🎯
Troubleshooting OSPF convergence issues

Preparation Tips for 4A0-C04

Focus on hands-on lab practice with Nokia routers to understand OSPF neighbor formation and LSA propagation in real-time.
Study the official Nokia NRS II course materials, especially the OSPF-specific modules, to grasp exam objectives thoroughly.
Review the 298 practice Q&As to identify weak areas and simulate exam conditions for time management.
Pay special attention to OSPFv3 differences from OSPFv2, as this is a key differentiator in the composite exam.
Join online forums or study groups dedicated to Nokia certifications to discuss complex OSPF scenarios and share tips.

Frequently Asked Questions — 4A0-C04

What is the passing score for the Nokia 4A0-C04 exam?

The passing score for the 4A0-C04 exam is typically around 70-80%, but it can vary. Nokia does not publish exact thresholds; check the official exam guide for the most current information.

How many questions are on the 4A0-C04 exam, and what is the time limit?

The exam usually contains 60-70 multiple-choice questions, with a time limit of 90 minutes. The 298 practice Q&As cover a broader range to ensure thorough preparation.

Can I take the 4A0-C04 exam online or only at a test center?

Nokia exams are often available through Pearson VUE test centers. Online proctoring may be an option depending on your location; verify with the vendor for current delivery methods.

How many questions are in the ExamsTree 4A0-C04 study guide?
The ExamsTree 4A0-C04 PDF study guide contains 298+ practice questions with detailed answer explanations, all mapped to the official Nokia exam objectives.

Why Choose ExamsTree?

ExamsTree 4A0-C04 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 298+
Format PDF
Updated 5/24/2026
Cert Nokia Network Routing Specialist II (NRS II)
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