- What You Actually Pay For
- The USD 125 Exam Fee: Mechanics and Scope
- Training Costs: The Separate Line Item
- Three Realistic Budget Scenarios
- Smaller Costs That Candidates Overlook
- Planning for a Retake Without Panic
- Where to Spend Study Effort Across the Six Modules
- Timing Risk: The 2027 Exam Revision
- Getting Your Employer to Pay
- Frequently Asked Questions
- The published fee for the single required exam, 4A0-100, is USD 125; training is priced separately.
- NRS I needs only one multiple-choice exam: 40 questions in 90 minutes, with no mandatory exam prerequisite.
- The 110-minute appointment includes a 20-minute introductory survey, so budget time for the sitting, not extra fees.
- The issuer announces a revised exam on 2027-03-09, with unavailability 2027-02-09 through 2027-03-08; plan your attempt accordingly.
What You Actually Pay For
Nokia Network Routing Specialist I is one of the more predictable certifications to budget for, because its structure is simple. There is one mandatory exam, 4A0-100 IP Networks and Services Fundamentals, and no mandatory exam prerequisite is listed. That means the certification cost breaks into just two buckets: the exam fee you pay to sit the test, and whatever you choose to spend on preparation.
Keeping those two buckets separate is the single most useful budgeting habit. The exam fee is a fixed, published number. Preparation spending is entirely discretionary and can range from very little to the price of a full instructor-style course. Candidates who blur the two often assume the certification is far more expensive than it is, or they forget that course pricing does not cover the exam appointment.
If you are still confirming whether this credential fits your career, read What Is NRS I Certification? first, then return here to price it out.
The USD 125 Exam Fee: Mechanics and Scope
The published exam fee for 4A0-100 is USD 125. This is the figure to anchor your budget on. Because NRS I requires only this one exam, that fee represents the full examination cost of earning the certification on a first attempt.
What the fee covers
The fee buys you one sitting of a single multiple-choice exam with 40 questions and a 90-minute time limit. The scheduled appointment runs 110 minutes because it includes a 20-minute introductory survey before the timed portion. That survey is not part of your exam time, and it does not change the price. When you plan your day, reserve the full 110 minutes so you are not rushed into the first question.
What the fee does not cover
- Any Nokia training course, including the current course that teaches model-driven CLI (MD-CLI).
- Third-party study materials or practice resources.
- Lab access, if you choose a paid environment to practice 7750SR configuration.
- A retake, should you need one.
Because no current pass threshold or scored/unscored split is established in the material reviewed, do not budget on the assumption of a particular margin for error. For what is and is not known about scoring, see NRS I Passing Score 2026: Exactly What You Need to Pass and NRS I Pass Rate 2026: What the Data Shows.
Training Costs: The Separate Line Item
Nokia offers a course aligned to this exam, covering IP Networks and Services Fundamentals. It is the issuer's own preparation path, and its content maps directly onto the six candidate-exam-topic modules. The course uses model-driven CLI, so hands-on exposure to MD-CLI syntax is part of what it delivers.
The key fact for budgeting is that training prices are separate from the exam fee. Treat the course as an optional accelerator rather than a gate. Some candidates already work with Nokia service routers and need only a targeted review; others come from a different vendor background and benefit from structured instruction on SR OS conventions.
The six modules you would be paying to learn
Understanding the scope helps you decide how much training you really need. The issuer-designated candidate exam topics are six modules, which are an unweighted preparation outline rather than a weighted blueprint or an exhaustive content list:
- Introduction to Networking and Services
- Service Router Components and Command Line Interface
- Ethernet
- The Internet Layer
- IP Routing Protocol Basics
- Services Overview
If you already hold solid fundamentals in Ethernet, IPv4 addressing, and OSPF, you may only need training for the Nokia-specific parts: the 7750SR hardware and boot sequence, SR OS CLI operation, and the VPWS/VPLS/VPRN service configuration. If those are all new, structured training offsets more of the risk of a retake. The NRS I Training overview and the NRS I Exam Domains 2026: Complete Guide to All 6 Content Areas help you gauge which camp you are in.
Three Realistic Budget Scenarios
Rather than inventing totals, the table below shows how the cost components combine under different preparation strategies. Only the exam fee is a fixed published figure; the other lines depend on prices you must confirm yourself.
| Approach | Exam fee | Training | Best for |
|---|---|---|---|
| Self-study route | USD 125 | None purchased; rely on free reading and original practice material | Candidates with existing IP, Ethernet, and OSPF/BGP background |
| Hybrid route | USD 125 | Selective: lab time or supplemental resources for SR OS CLI and services | Network engineers new to Nokia platforms |
| Full course route | USD 125 | Nokia's IP Networks and Services Fundamentals course (price set separately) | Career changers or candidates needing structure |
In every scenario the exam portion is identical. The decision is how much you invest in closing knowledge gaps before you pay the fee, since a well-prepared first attempt is the cheapest path. Our NRS I Study Guide 2026: How to Pass on Your First Attempt walks through how to decide which route suits your starting point.
Smaller Costs That Candidates Overlook
The exam fee and course price get the attention, but a few quieter items can add up.
Lab and practice environment
The exam is multiple-choice, but several modules reward hands-on familiarity. Questions touching SR OS CLI operation, 7750SR layer 3 interfaces, or VPN service elements are far easier when you have actually typed the commands. Free or low-cost virtual lab options can substitute for hardware, but verify what the current course and tooling provide before paying for anything extra.
Study time as a cost
Your hours have value. A candidate who skips structured preparation and fails will spend more total time and money than one who prepares well once. The fee is only part of the real expense.
Practice material
Supplemental practice questions are useful for pacing against the 40-question, 90-minute format, but they should be original study aids rather than anything claiming to reproduce actual exam content or guarantee results. You can try free original questions on the NRS I Exam Prep practice test site to gauge your readiness before deciding how much more to spend.
Planning for a Retake Without Panic
Honest budgeting includes the possibility that a first attempt does not go to plan. The material reviewed does not establish a specific retake policy, waiting period, or discounted retake price, so do not assume the retake costs less than USD 125, and do not assume it costs the same. Check Nokia's current exam policies before you register, so that the number you build into your plan is real rather than guessed.
A practical rule: set aside a contingency equal to one additional exam fee until you have confirmed the retake terms. That way a miss is an inconvenience rather than a financial surprise. And because there is no established pass rate to calibrate against, treat the exam as genuinely requiring preparation. The article How Hard Is the NRS I Exam? Complete Difficulty Guide 2026 covers where candidates tend to find the material demanding.
Where to Spend Study Effort Across the Six Modules
Since the six modules are unweighted, you cannot rely on a percentage breakdown to decide where to focus. Instead, allocate effort by how foundational a module is and how unfamiliar it is to you. This is the one place a simple schedule makes sense, and it is tied directly to the module content.
Networking foundations and Ethernet
- Protocol-layer models, encapsulation and decapsulation, control versus forwarding separation.
- Ethernet frame structure, link-layer addressing, hub versus switch behavior, VLAN segmentation, redundant Ethernet.
The Internet Layer
- IPv4 addressing, subnetting, and summarizing routes.
- Forwarding decisions and packet-header fields; 7750SR layer 3 interfaces.
Service router and CLI plus routing basics
- 7750SR hardware, router boot sequence, operating and configuring SR OS in MD-CLI.
- Static routes, OSPF fundamentals, BGP introduction, internet building blocks.
Services Overview and timed review
- VPN concepts, MPLS tunnel transport, label distribution with LDP, VPN service elements, VPWS/VPLS/VPRN configuration.
- Timed practice against the 40-question, 90-minute format.
This order is deliberate: Ethernet and IPv4 underpin everything later, and Services Overview builds on routing and MPLS concepts, so studying it last avoids learning VPLS before you understand how forwarding works. A candidate with strong routing experience can compress weeks 1 and 2 and spend the savings on SR OS CLI practice.
High-value topics to master before you pay the fee
These areas reward careful study because they connect multiple modules.
- Subnetting and route summarization, which feed directly into layer 3 interface and forwarding questions.
- The difference between static and dynamic routing, and where OSPF and BGP each fit.
- How MPLS tunnel transport and LDP label distribution carry VPN services.
- The distinction between VPWS, VPLS, and VPRN service types.
For a one-page recap to use in the final days, see the NRS I Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Timing Risk: The 2027 Exam Revision
Timing has a direct cost implication. The issuer announces a revised exam on 2027-03-09, with the exam unavailable from 2027-02-09 through 2027-03-08. This guidance reflects the October 2026 scope, and you should recheck Nokia's pages before the transition.
Why this matters for your wallet: if you buy study materials or a course aligned to the current scope and then delay your attempt until after the revision, you may find the exam content has changed. Money spent preparing for the old scope could be partly wasted. The practical advice is to schedule your attempt comfortably before the unavailability window begins, and to confirm the current exam details at the time you register. Details on scheduling are covered in NRS I Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Aim to sit 4A0-100 before the exam becomes unavailable on 2027-02-09. Registering and preparing against the current scope protects every dollar you spend on training and practice material.
Getting Your Employer to Pay
Because the exam fee is a single, modest, clearly published amount, it is an easy request to put to a manager. The case is strongest when the certification aligns with work you already do or are about to do: operating Nokia service routers, supporting IP and MPLS networks, or delivering VPN services to customers.
When making the request, be specific about the scope. NRS I covers fundamentals: layered TCP/IP, Ethernet, IP forwarding and addressing, static versus dynamic routing, OSPF and BGP, VPN types, MPLS transport, and basic SR OS configuration. Present it as a foundation that supports more advanced work rather than as a finished specialization. For a view of how the credential connects to roles, see NRS I Jobs, and for the broader value argument, Is the NRS I Certification Worth It? Complete ROI Analysis 2026. If compensation is on your mind, the NRS I Salary Guide 2026: Complete Earnings Analysis discusses earnings qualitatively.
Before you submit any funding request, also confirm eligibility details in NRS I Requirements 2026: Eligibility, Prerequisites & How to Qualify, so you can state accurately that no mandatory exam prerequisite is listed.
Frequently Asked Questions
The published fee for the single required exam, 4A0-100 IP Networks and Services Fundamentals, is USD 125. Training prices are separate and are not included in that fee.
No mandatory exam prerequisite is listed, so the course is optional preparation rather than a requirement. Course length and price are training facts, separate from the exam fee, and you should confirm current training pricing on Nokia's pages.
No. The exam itself is 90 minutes for 40 multiple-choice questions. The 110-minute appointment includes a 20-minute introductory survey, which is not examination time.
NRS I requires the single mandatory 4A0-100 exam. Do not substitute the requirements of other Nokia certifications such as NRS II or SRA; those have their own separate requirements.
Yes, possibly. The issuer announces a revised exam on 2027-03-09, with the exam unavailable from 2027-02-09 through 2027-03-08. To avoid paying for preparation aimed at outdated scope, plan to test before that window and recheck Nokia's pages before registering.
For a broader introduction to the credential, start with NRS I Certification, and when you are ready to measure your readiness against the 40-question format, take a timed run on the NRS I Exam Prep practice tests. This article reflects sources reviewed October 11, 2026, so verify fees and dates on Nokia's official pages before you pay.