Free NRS I Exam Prep
Nokia Certified Network Routing Specialist I (NRS I, 4A0-100)
Prepare for the NRS I exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
Quick Facts
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NRS Nokia Service Routing Certifications: Study Roadmap
Follow this path to organize your exam preparation
Networking and ServicesYou are here
Layered models, encapsulation, and control versus data plane functions.
Service Router Components and CLI
Router roles, 7750 components, boot sequence, and SR OS management using MD-CLI.
Ethernet
Medium access, switching, MAC addressing, VLANs, redundancy, and frame fields.
Internet Layer
Address planning, summarization, routed interfaces, forwarding, IP headers, and small-network connectivity.
Routing Basics
Static routes, OSPF, introductory BGP, and the components of the Internet.
Services
VPN choices, MPLS transport, LDP, service building blocks, and VPWS/VPLS/VPRN configuration.
Can You Take the NRS I Exam?
Check if you meet the basic eligibility requirements
- •Create or access a Nokia Student Portal account and select Exam Registration
- •Review the appointment-specific Pearson VUE identification and delivery requirements
- •Confirm the exam version and delivery availability before paying
NRS I Quick Facts
Time to Get Licensed
Example schedule: 72 hours over 6-9 weeks; adjust to demonstrated skill rather than a guaranteed completion time
From start to license in hand
Exam Provider
Pearson VUE (test center or OnVUE online proctoring)
Retake Policy
Nokia’s written-exam policy states no required waiting period after failure and no limit on rewrites. Each attempt requires registration; check current fees and availability.
Total Cost Breakdown
Free NRS I Prep Tools
Reported exam pass rate: Nokia does not publish public NRS I pass-rate percentages.. These figures describe exam candidates, not OpenExamPrep user outcomes. Check the exam sponsor’s website for published statistics.
Practice with Explanations
Review independent questions on Ethernet, IP forwarding, routing, MPLS, and Nokia services.
Targeted Review
Use explanations to identify whether an error concerns the underlay, service signaling, or customer access.
Current-Version Scope
Study the OSPF-based 4A0-100 available through February 8, 2027; Nokia announces revised exams for March 9, 2027.
Free Access
OpenExamPrep study materials and practice questions are free.
What You'll Study
10 chapters covering the exam topics in this guide
Chapter 1: OSI and TCP/IP Networking Models
3 sections
Chapter 2: Ethernet Technology and LAN Switching
4 sections
Chapter 3: IP Addressing and Subnetting
4 sections
Chapter 4: IP Forwarding and Host Resolution
3 sections
Chapter 5: Nokia Service Router Hardware and Management
4 sections
Chapter 6: Routing Fundamentals and Static Routing
3 sections
Chapter 7: Interior Gateway Protocols: OSPF and IS-IS
3 sections
Chapter 8: BGP and Internet Architecture
4 sections
Chapter 9: MPLS Architecture and Signaling
3 sections
Chapter 10: Nokia VPN Services: Layer 2 and Layer 3
3 sections
NRS I Exam Details
Nokia Certified Network Routing Specialist I (NRS I, 4A0-100)
Administered by Nokia
Exam Content Breakdown
Based on the official Nokia content outline
Layered models, encapsulation, and control versus data plane functions.
Router roles, 7750 components, boot sequence, and SR OS management using MD-CLI.
Medium access, switching, MAC addressing, VLANs, redundancy, and frame fields.
Address planning, summarization, routed interfaces, forwarding, IP headers, and small-network connectivity.
Static routes, OSPF, introductory BGP, and the components of the Internet.
VPN choices, MPLS transport, LDP, service building blocks, and VPWS/VPLS/VPRN configuration.
What's Included
10 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
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What's Next After the NRS I?
After passing the NRS I, you can pursue these career paths
CompTIA Network+
Reinforce vendor-neutral networking fundamentals that underpin every NRS I topic.
Cisco CCNA
Compare Nokia SR OS service-provider concepts with Cisco IOS enterprise routing and switching.
Juniper JNCIA-Junos
Cross-train on Junos so you can support Nokia, Juniper, and mixed service-provider environments.
CompTIA Security+
Add baseline security knowledge that complements service-provider routing roles.
NRS I Exam FAQ
Official Nokia Resources
Verify information with these official sources
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Ready to Start Your Free NRS I Prep?
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