The Nokia Service Routing Architect (SRA) certification validates your expertise in designing and implementing advanced routing solutions on Nokia platforms. The 4A0-C02 exam, also known as the Nokia SRA Composite Exam, assesses both theoretical knowledge and practical decision-making across core routing and service delivery domains. This page provides a structured study roadmap to help you prepare efficiently and confidently for certification. Whether you are advancing your career in network architecture or deepening your Nokia technical skills, this guide aligns your preparation with real-world routing scenarios and exam requirements.
Use this topic map to guide your study for Nokia 4A0-C02 (Nokia SRA Composite Exam) within the Nokia Service Routing Architect path.
The 4A0-C02 exam uses multiple item types to evaluate both foundational knowledge and applied reasoning in routing architecture. Questions progress in complexity, requiring you to connect concepts across design, configuration, and operational decision-making.
Questions emphasize practical application; expect to analyze network diagrams, evaluate trade-offs between routing strategies, and justify decisions based on service requirements and Nokia platform capabilities.
Effective preparation requires a structured, topic-driven approach combined with hands-on practice. Allocate study time proportionally to exam weight, and regularly test yourself under timed conditions to build confidence and pacing discipline.
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BGP and VPRN topics typically account for a significant portion of the exam, as they form the foundation of modern routing architectures. However, all four domains (BGP, VPLS, VPRN, and QoS) are tested, and questions often require you to integrate knowledge across multiple topics. Review the exam syllabus and practice materials to identify your weakest areas and allocate study time accordingly.
In production networks, these domains work together: BGP advertises routes between autonomous systems, VPRN isolates customer traffic and applies routing policies, VPLS provides Layer 2 connectivity for legacy services, and QoS ensures that traffic from all services meets SLA requirements. Understanding these interactions is critical for designing scalable, reliable networks and is reflected in scenario-based exam questions.
While the exam does not include live simulations, hands-on experience with Nokia routing platforms significantly improves your ability to answer scenario-based and configuration reasoning questions. Prioritize labs that cover BGP policy configuration, VPRN service provisioning, and QoS implementation. If lab access is limited, study configuration examples and trace through command outputs to build conceptual understanding.
Candidates often confuse VPRN and VPLS use cases, misunderstand BGP attribute behavior in multi-path scenarios, or overlook QoS interaction with routing policies. Another frequent error is rushing through scenario questions without carefully reading all answer options. Slow down, annotate the question, and eliminate clearly wrong options before selecting your answer.
In the final week, focus on weak topics identified during practice tests rather than re-reading all material. Take one or two full-length timed practice tests to build stamina and pacing. Review explanations for any questions you answered incorrectly or guessed on, and revisit the Nokia documentation for topics that feel shaky. Avoid cramming new material; instead, reinforce concepts you already understand and address gaps through targeted review.
A network port using null encapsulation has a MTU of 1514 bytes. When MPLS transport is used without FRR, what is the maximum service MTU of a VPLS using that port?
How does an IOM3 improve the queue usage over an IOM2 in an Alcatel-Lucent 7750 SR? (Choose two)
Choose the best answer to describe the result of the configuration of an Alcatel-Lucent 7750 SR shown below?
When ports configured with IEEE 802.3ah EFM are operationally down, what must the device do before declaring the ports are up?
The command "send flush-on-failure" has been enabled within a VPLS instance. What does the PE do upon detection of a SAP failure within the VPLS?