Nokia Network Routing Specialist I (NRS I, 4A0-100) Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Nokia Network Routing Specialist I (NRS I, 4A0-100) Vocabulary Game
A free word game for the Nokia Network Routing Specialist I (NRS I, 4A0-100) exam. Each round shows a clue for one of 20 exam terms across 6 topics. Recall the term, spell it out, then read a short explanation. Rounds pick a random term, so you can keep playing as long as you like.
How to Play
- 1Read the clue and type a term with the right number of letters (3 to 6). Abbreviations count: type the letters only.
- 2Press Check Answer or Enter. Each letter changes color to show how close you are.
- 3You have 6 tries. Stuck? Need a hint? asks the AI tutor for a nudge without giving the term away, and Skip moves to a new term.
- 4After the round, read the explanation, ask the AI to explain it, share your result, or press Next.
- ARight letter, right spot
- AIn the term, wrong spot
- ANot in the term
Explore More Nokia Service Routing Certifications
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Free CETopics in the Nokia Network Routing Specialist I (NRS I, 4A0-100) Vocabulary Game
Networking models
Service router hardware
Ethernet switching
Internet layer
IP routing
VPN services
Sources for these terms (19)
- RFC 9293: Transmission Control Protocol (TCP) · Source checked 2026-11-03
- RFC 768: User Datagram Protocol · Source checked 2026-11-03
- Nokia SR OS Interface Configuration Guide, 25.7.R1 · Source checked 2026-11-03
- Nokia SR OS Basic System Configuration Guide: System management, 25.7.R1 · Source checked 2026-11-03
- Nokia SR OS Basic System Configuration Guide: CPM redundancy, 26.7.R1 · Source checked 2026-11-03
- Nokia SR OS Layer 2 Services and EVPN Guide: Virtual private LAN service, 25.7.R1 · Source checked 2026-11-03
- Nokia NSP Glossary: VLAN · Source checked 2026-11-03
- Nokia NSP Glossary: STP · Source checked 2026-11-03
- Nokia SR OS Interface Configuration Guide: LAG, 26.3.R1 · Source checked 2026-11-03
- RFC 4632: Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan · Source checked 2026-11-03
- RFC 791: Internet Protocol · Source checked 2026-11-03
- RFC 792: Internet Control Message Protocol · Source checked 2026-11-03
- RFC 1191: Path MTU Discovery · Source checked 2026-11-03
- RFC 2328: OSPF Version 2 · Source checked 2026-11-03
- RFC 4271: A Border Gateway Protocol 4 (BGP-4) · Source checked 2026-11-03
- RFC 3031: Multiprotocol Label Switching Architecture · Source checked 2026-11-03
- RFC 5036: LDP Specification · Source checked 2026-11-03
- Nokia SR OS Services Overview Guide: Service entities, 26.7.R1 · Source checked 2026-11-03
- RFC 9542: IANA Considerations and IETF Protocol and Documentation Usage for IEEE 802 Parameters (April 2024) · Source checked 2026-11-03
About the Nokia NRS I Exam
NRS I is Nokia’s entry-level Service Routing Certification. Passing the current 4A0-100 IP Networks and Services Fundamentals written exam earns the credential. Its course covers networking models, 7750 hardware and MD-CLI, Ethernet, IP, static routing, OSPF, basic BGP, MPLS/LDP, and VPN services.
Exam sponsor: Nokia / Pearson VUE. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
40 questions
Time Limit
90 minutes
Passing Score
Not specified on public exam profile
Reported exam pass rate: Not published. Nokia does not publish exam-level pass rates Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Official sources
- Nokia Network Routing Specialist I (NRS I) Certification
- Nokia IP Networks and Services Fundamentals Exam (4A0-100)
- Nokia Service Routing Certification (SRC) Program
- Nokia Service Routing Certification - Pearson VUE
- Current course objectives and module outline; checked October 30, 2026
- Nokia Learning exam catalog and registration
- Announced 2026/27 SRC transition
- SRC recertification
- Nokia Learning and examination methods, 2025 — written-exam policy
Frequently Asked Questions
Is the NRS I vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How does the NRS I vocabulary game work?
Each round shows a clue for one of 20 NRS I terms. Guess the term in six tries: green means the right letter in the right spot, yellow means the letter is in the term but in another spot, and gray means it is not in the term. After the round, read the explanation and play the next term.
Where do the NRS I terms come from?
OpenExamPrep researched each term from the Nokia / Pearson VUE content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What is the current Nokia NRS I exam format?
Nokia lists 40 questions, 90 minutes of testing, a 110-minute appointment including a 20-minute introductory survey, and English-language delivery for 4A0-100. Its public exam profile does not specify a passing score; confirm scoring requirements with Nokia rather than assuming the NRS II lab pass mark applies.
How much does 4A0-100 cost and where is it taken?
Nokia lists $125 USD for the exam. Pearson VUE delivers written exams online and at test centers where available. Check the appointment’s local pricing, identification rules, and delivery restrictions before booking.