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100+ Free Nokia NRS II Practice Questions

Pass your Nokia Network Routing Specialist II (NRS II) Composite Written (4A0-C03 / 4A0-C04) exam on the first try — instant access, no signup required.

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What is the purpose of an OSPF virtual link?

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to track
2026 Statistics

Key Facts: Nokia NRS II Exam

60

Composite Written Questions

4A0-C03 / 4A0-C04

70%

Passing Score

~42 correct answers

90 min

Time Limit

Pearson VUE delivery

$125

Exam Fee (USD)

Composite written

4 Domains

IS-IS/OSPF, BGP, MPLS, Services

~25% each

+ Lab

Separate 4A0-N01 Required

3.5-hour practical lab

The Nokia NRS II Composite Written (4A0-C03 IS-IS variant or 4A0-C04 OSPF variant) is a 60-question, 90-minute exam with a 70% passing score and a $125 USD fee, delivered through Pearson VUE. It validates IS-IS or OSPF link-state operation, BGP fundamentals for services (path attributes, route reflection, MP-BGP, RD/RT), MPLS with LDP and RSVP-TE (FRR, MBB), and Nokia services (VPRN, VPLS, Epipe, EVPN). The four domains are roughly equally weighted at about 25% each. Note this practice test covers ONLY the composite written exam — the full NRS II credential ALSO requires a separate 3.5-hour practical lab (4A0-N01). Plan 60-100 hours of focused study for the composite written.

Sample Nokia NRS II Practice Questions

Try these sample questions to test your Nokia NRS II exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Nokia 7750 SR chassis is purpose-built for high-density data-center and core deployments with 14 IOM slots and ultra-high capacity?
A.7750 SR-1
B.7750 SR-7
C.7750 SR-12
D.7750 SR-14s
Explanation: The 7750 SR-14s is the largest 7750 chassis Nokia ships, designed for ultra-high-capacity core and large-scale aggregation roles. It supports up to 14 IOM/XCM slots and the highest per-system throughput in the SR-s family, well above the SR-1, SR-7, or SR-12.
2Which CLI environment is the modern, model-driven CLI introduced on Nokia SR OS that is aligned with YANG and supports candidate configuration?
A.Classic CLI
B.MD-CLI
C.RACADM
D.Junos CLI
Explanation: MD-CLI (model-driven CLI) is the YANG-aligned CLI on SR OS. It supports candidate configuration with explicit commit, model-driven branches under /configure, and is the recommended interface for modern automation alongside NETCONF/gNMI.
3On a Nokia 7750 SR running IS-IS, which PDU type is used to send periodic Hellos on a broadcast LAN?
A.LSP
B.CSNP
C.PSNP
D.LAN IIH
Explanation: IS-IS Hello PDUs are called IIHs. On a broadcast (LAN) interface, routers send LAN IIHs that include the LAN ID and priority used to elect the Designated IS (DIS). Point-to-point links use Point-to-Point IIHs.
4An IS-IS NET address on a Nokia router is 49.0001.1921.6800.1001.00. Which portion is the System ID?
A.49
B.0001
C.1921.6800.1001
D.00
Explanation: An IS-IS NET (Network Entity Title) consists of the AFI/Area (e.g., 49.0001), a 6-byte System ID (here 1921.6800.1001), and the NSEL (00). The System ID must be unique per router in the IS-IS domain and is commonly derived from a loopback IPv4 address.
5Two Nokia 7750 SR routers configured as L1-only and L2-only respectively are connected on a point-to-point link. What IS-IS adjacency, if any, will form?
A.A Level-1 adjacency
B.A Level-2 adjacency
C.A Level-1-2 adjacency
D.No adjacency forms
Explanation: An IS-IS adjacency requires matching levels. A Level-1-only router and a Level-2-only router will not form any adjacency because neither can speak the other's level. To form an adjacency, at least one side must include the matching level (e.g., make one side L1L2).
6On an IS-IS broadcast LAN with multiple routers, what role is elected to flood LSPs efficiently and synchronize the LSDB?
A.BDR (Backup Designated Router)
B.DIS (Designated Intermediate System)
C.Root bridge
D.Route reflector
Explanation: On an IS-IS broadcast LAN, a DIS is elected per level. The DIS represents the LAN as a pseudonode in the LSDB, generates the pseudonode LSP, and sends periodic CSNPs to keep all routers synchronized.
7A Nokia operator wants IS-IS to advertise metrics greater than 63 on a high-capacity link. Which feature must be enabled?
A.Narrow metrics
B.Wide metrics
C.Reference bandwidth
D.Multi-topology
Explanation: Wide metrics (RFC 5305) extend the IS-IS metric range from the original 6-bit narrow value (max 63 per link / 1023 path) to a 24-bit wide value (max 16,777,214 per link). Wide metrics are required for traffic-engineering extensions and modern designs.
8Which OSPF area type permits Type 7 (NSSA-External) LSAs to be originated by an ASBR within the area?
A.Stub area
B.Totally stubby area
C.Not-So-Stubby Area (NSSA)
D.Backbone area
Explanation: An NSSA permits an ASBR inside the area to redistribute external routes, but those externals are carried as Type 7 LSAs to avoid violating the stub property. The ABR translates Type 7 to Type 5 LSAs as the routes leave the NSSA.
9Which OSPFv2 LSA is generated by every router and lists its directly connected links and link costs within an area?
A.Type 1 (Router-LSA)
B.Type 2 (Network-LSA)
C.Type 3 (Summary-LSA)
D.Type 5 (AS-External-LSA)
Explanation: The Type 1 Router-LSA is originated by every OSPF router within an area. It lists the router's links, link types, and metrics, and is flooded only inside the originating area.
10An ABR connects area 0 and area 10. To inject a single 10.10.0.0/16 summary into area 0 instead of multiple /24s, what should be configured on the ABR?
A.An OSPF stub area
B.An area-range (inter-area summarization) on the ABR
C.A virtual link from the ABR to area 10
D.A redistribute connected statement
Explanation: Inter-area summarization on OSPF is configured on the ABR using an area-range that aggregates the area's prefixes into a single Type 3 Summary-LSA. This reduces LSDB and routing-table size in other areas.

About the Nokia NRS II Exam

The Nokia Network Routing Specialist II (NRS II) credential validates expert-level knowledge of IP/MPLS service-provider routing on Nokia 7750 SR / SR OS. The full NRS II credential requires two exams: a composite written (4A0-C03 IS-IS variant or 4A0-C04 OSPF variant) delivered through Pearson VUE, and a separate 3.5-hour practical lab (4A0-N01). This practice test focuses on the composite written exam — IS-IS or OSPF link-state routing, BGP fundamentals for services, MPLS with LDP and RSVP-TE, and Nokia services architecture (VPRN, VPLS, Epipe, EVPN, 6PE/6VPE).

Assessment

60 multiple-choice questions covering IS-IS or OSPF link-state routing, BGP fundamentals for services, MPLS (LDP, RSVP-TE, FRR), and Nokia services architecture (VPRN, VPLS, Epipe, EVPN, 6PE/6VPE)

Time Limit

90 minutes

Passing Score

70%

Exam Fee

$125 USD (Nokia / Pearson VUE)

Nokia NRS II Exam Content Outline

~25%

IS-IS or OSPF Routing Protocol

Link-state operation, IS-IS PDUs (IIH/LSP/CSNP/PSNP), NET addressing, levels and adjacencies, DIS election, wide metrics, multi-topology, OSPFv2/v3, LSA types 1-7, area types (stub, totally stubby, NSSA), summarization, virtual links, HMAC-MD5/HMAC-SHA authentication

~25%

BGP Fundamentals for Services

FSM, AFIs/SAFIs (IPv4/IPv6 unicast, VPN-IPv4/v6, L2VPN/EVPN), path attributes (AS_PATH, NEXT_HOP, ORIGIN, LOCAL_PREF, MED, communities), best-path selection, route policies, RR cluster-id/originator-id, confederations, MP-BGP for L3VPN with RD/RT, Inter-AS Options A/B/C, AS override

~25%

MPLS

Label operations and PHP, reserved labels 0-15, LDP (TCP/UDP 646, DU + Liberal Retention defaults), RSVP-TE (PATH/RESV, ERO/RRO, MBB, FRR facility and one-to-one, NHOP/NNHOP bypass, refresh reduction, graceful restart), CSPF and affinity, signaled vs static LSPs, LSP templates

~25%

Services Architecture

SDP and SAP, customer ID and service ID, Layer 2 services (Epipe RFC 4448, Apipe, Cpipe, Fpipe, Ipipe), VPLS (split-horizon groups, MAC learning, BUM flooding, H-VPLS), VPRN RFC 4364 L3VPN, EVPN RFC 7432 (Type 1/2/3/4/5 routes, ESI, all-active vs single-active multihoming, EVPN-MPLS vs EVPN-VXLAN), 6PE and 6VPE, CSC

How to Pass the Nokia NRS II Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 60 multiple-choice questions covering IS-IS or OSPF link-state routing, BGP fundamentals for services, MPLS (LDP, RSVP-TE, FRR), and Nokia services architecture (VPRN, VPLS, Epipe, EVPN, 6PE/6VPE)
  • Time limit: 90 minutes
  • Exam fee: $125 USD

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Nokia NRS II Study Tips from Top Performers

1Pick your IGP variant early — 4A0-C03 for IS-IS or 4A0-C04 for OSPF — and study only that link-state protocol; do not split your time between both
2Memorize BGP path attribute categories (well-known mandatory: AS_PATH/NEXT_HOP/ORIGIN; well-known discretionary: LOCAL_PREF/ATOMIC_AGGREGATE; optional transitive: AGGREGATOR/COMMUNITY; optional non-transitive: MED/CLUSTER_LIST) — Nokia tests these explicitly
3Lock in LDP defaults: TCP 646, Downstream Unsolicited + Liberal Retention by default on Nokia. These show up in MPLS questions repeatedly
4Master RSVP-TE FRR vocabulary: facility (bypass shared by many LSPs) vs one-to-one (per-LSP detour), NHOP (link protection) vs NNHOP (node protection), MBB for re-optimization
5Differentiate Nokia services by purpose: Epipe (P2P Ethernet PWE3), VPLS (multipoint Ethernet), VPRN (L3VPN RFC 4364), and EVPN (RFC 7432 with Type 1-5 routes)
6Practice on a Nokia 7750 SR simulator if you can; the practical lab (4A0-N01) requires real CLI fluency that no written exam practice can replace

Frequently Asked Questions

What is the Nokia NRS II composite written exam (4A0-C03 / 4A0-C04)?

The Nokia NRS II composite written exam validates expert-level service-provider routing knowledge on Nokia 7750 SR / SR OS. There are two variants: 4A0-C03 covers the IS-IS routing protocol and 4A0-C04 covers OSPF; both also cover BGP fundamentals for services, MPLS (LDP and RSVP-TE), and Nokia services architecture (VPRN, VPLS, Epipe, EVPN). The composite written is one of two required exams for the full NRS II credential — the other is the separate 3.5-hour practical lab (4A0-N01).

How many questions are on the Nokia NRS II composite written?

The composite written exam contains 60 multiple-choice questions and you have 90 minutes to complete it. The passing score is 70% (about 42 correct answers). Questions are roughly evenly split across the four domains: link-state routing (IS-IS or OSPF), BGP fundamentals for services, MPLS, and services architecture.

What does the Nokia NRS II composite written cost?

The Nokia NRS II composite written exam (4A0-C03 or 4A0-C04) costs $125 USD per attempt and is administered through Pearson VUE testing centers or online proctoring. Nokia partners may have access to vouchers or training credits. The separate 3.5-hour practical lab (4A0-N01) is priced separately.

Do I have to take both 4A0-C03 and 4A0-C04?

No. The composite written exam comes in two variants depending on the IGP you choose: 4A0-C03 is the IS-IS variant and 4A0-C04 is the OSPF variant. You take ONE of them, not both. Pick the variant that matches your operational environment or area of strength. The rest of the content (BGP, MPLS, services) is the same in both variants.

Is this practice test enough to pass the NRS II?

These 100 practice questions are conceptual prep for the composite written exam (4A0-C03 / 4A0-C04). They cover the four written domains: link-state routing, BGP for services, MPLS, and Nokia services. To earn the full NRS II credential, you also need to pass the separate 3.5-hour practical lab (4A0-N01) which requires extensive hands-on time on Nokia 7750 SR — that hands-on practice is not something a written practice test can replace.

How long should I study for the Nokia NRS II composite written?

Plan 60-100 hours of focused study over 6-10 weeks for the composite written, assuming you already have NRS I-level knowledge. Spend roughly equal time on each of the four domains. Add separate lab/practice time on Nokia 7750 SR (or simulator) for the practical lab (4A0-N01) — most candidates schedule the lab only after they are very comfortable with both the CLI and the service constructs.

What Nokia 7750 SR / SR OS topics should I focus on first?

Focus first on link-state routing (your chosen variant — IS-IS PDUs, NET, levels, or OSPF LSA types and area types) because it is foundational. Then BGP attributes and best-path selection (heavily tested), MPLS label operations with LDP defaults (DU + Liberal Retention) and RSVP-TE FRR, and finally Nokia services architecture: SDP/SAP, VPRN with RD/RT, VPLS with split-horizon, and EVPN RFC 7432 route types.