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100+ Free Nokia NRS II Composite (IS-IS) Practice Questions

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What is the BGP LOCAL_PREF attribute used for?

A
B
C
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to track
2026 Statistics

Key Facts: Nokia NRS II Composite (IS-IS) Exam

70

Exam Questions

Nokia 4A0-C03 exam profile

120 min

Exam Duration

Nokia 4A0-C03 exam profile

70%

Passing Score

Nokia SRC scoring policy

$375

Exam Fee (USD)

Pearson VUE Nokia pricing

Pearson VUE

Test Provider

Nokia SRC delivery partner

3 years

Credential Validity

Nokia SRC recertification policy

The Nokia NRS II Composite Exam (4A0-C03, IS-IS version) is a 70-question, 120-minute multiple-choice test delivered through Pearson VUE for $375 USD with a 70% passing score. It combines four exams into one: IS-IS routing (ISO 10589, RFC 1195), BGP Fundamentals for Services (RFC 4271, RFC 4760, RFC 4456), MPLS (RFC 3031, LDP, RSVP-TE, FRR), and Services Architecture (Nokia service model, SAP, SDP, pseudowire, VPLS, VPRN, IES, Epipe). This composite is an alternative to taking the four individual exams separately for Nokia NRS II certification and is valid for three years.

Sample Nokia NRS II Composite (IS-IS) Practice Questions

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

1What is the default IS-IS router level on a Nokia SR OS device?
A.Level 1/Level 2 (L1L2)
B.Level 1 only
C.Level 2 only
D.Level 0
Explanation: By default, Nokia SR OS IS-IS routers operate as L1L2 (Level 1/Level 2) routers, meaning they form both L1 and L2 adjacencies and maintain both L1 and L2 link-state databases.
2What is the primary purpose of the IS-IS DIS (Designated Intermediate System) on a broadcast network?
A.To generate pseudonode LSPs representing the broadcast network
B.To authenticate IS-IS packets on the broadcast segment
C.To assign IP addresses to routers on the segment
D.To filter routes between Level 1 and Level 2
Explanation: The DIS generates pseudonode LSPs that represent the broadcast network in the link-state database. All routers on the segment form adjacencies with the pseudonode, reducing the number of adjacencies from O(n^2) to O(n).
3Which IS-IS TLV (Type-Length-Value) carries IPv4 prefix information?
A.TLV 135 (Extended IP Reachability)
B.TLV 2 (IS Neighbors)
C.TLV 1 (Area Addresses)
D.TLV 10 (Authentication)
Explanation: TLV 135 (Extended IP Reachability) carries IPv4 prefix information with support for wide metrics. It replaces the older TLV 128 (IP Internal Reachability) which only supports narrow metrics.
4What is the maximum metric value supported by IS-IS wide metrics?
A.63
B.1023
C.16777215
D.4294967295
Explanation: Wide metrics (used in TLV 135 and TLV 22) support a maximum metric value of 16,777,215 (2^24 - 1). This is significantly larger than narrow metrics which are limited to 63.
5Which IS-IS packet type is used to establish and maintain adjacencies?
A.IIH (IS-IS Hello)
B.LSP (Link State PDU)
C.CSNP (Complete Sequence Number PDU)
D.PSNP (Partial Sequence Number PDU)
Explanation: IS-IS Hello (IIH) packets are used to discover neighbors, establish adjacencies, and maintain those adjacencies. On broadcast networks, there are separate L1 and L2 IIHs. On point-to-point links, a single P2P IIH is used.
6What is the IS-IS default narrow metric value for all interfaces?
A.0
B.10
C.63
D.100
Explanation: The default narrow metric value for all IS-IS interfaces is 10. This applies to all interface types unless explicitly overridden by configuration. The value 10 was chosen as a reasonable default for a single hop.
7Which TLV is used in IS-IS to carry IPv6 prefix information?
A.TLV 236 (IPv6 Reachability)
B.TLV 135 (Extended IP Reachability)
C.TLV 232 (IPv6 Interface Address)
D.TLV 129 (Protocols Supported)
Explanation: TLV 236 (IPv6 Reachability) carries IPv6 prefix information with wide metrics support. TLV 232 carries IPv6 interface addresses but not prefix reachability information.
8How is the IS-IS DIS elected on a broadcast network?
A.The router with the highest priority wins; MAC address breaks ties
B.The router with the lowest Router ID wins
C.The router with the highest IP address wins
D.The first router to boot on the segment becomes DIS
Explanation: The DIS is elected based on the highest priority value (default 64, range 0-127). If priorities are equal, the router with the highest MAC address (SNPA) wins. Unlike OSPF DR, there is no backup DIS, and preemption is supported.
9What is the IS-IS default DIS priority on a broadcast interface?
A.0
B.64
C.127
D.100
Explanation: The default DIS priority on a Nokia SR OS broadcast interface is 64. The priority range is 0 to 127, with 127 being the highest priority. A priority of 0 does not prevent a router from becoming DIS (unlike OSPF DR priority 0).
10What is the IS-IS LSP refresh interval by default?
A.900 seconds (15 minutes)
B.1800 seconds (30 minutes)
C.1200 seconds (20 minutes)
D.3600 seconds (1 hour)
Explanation: The default LSP refresh interval in IS-IS is 900 seconds (15 minutes). Each router periodically regenerates its LSPs at this interval to prevent them from aging out of the database. The LSP lifetime default is 1200 seconds (20 minutes).

About the Nokia NRS II Composite (IS-IS) Exam

The Nokia 4A0-C03 NRS II Composite Exam (IS-IS version) is a comprehensive Service Routing Certification (SRC) test that combines four individual exams into one: IS-IS routing (4A0-112), BGP Fundamentals for Services (4A0-114), MPLS (4A0-103), and Services Architecture (4A0-104). It validates advanced knowledge of service-provider routing protocols, MPLS transport, and Nokia service architecture on the 7750 SR running SR OS. Passing this single composite exam earns the Nokia NRS II certification as an alternative to taking the four individual exams separately.

Assessment

70 multiple-choice questions combining IS-IS routing (4A0-112), BGP Fundamentals for Services (4A0-114), MPLS (4A0-103), and Services Architecture (4A0-104) into a single composite exam for Nokia NRS II certification

Time Limit

120 minutes

Passing Score

70%

Exam Fee

$375 (Nokia / Pearson VUE)

Nokia NRS II Composite (IS-IS) Exam Content Outline

25%

IS-IS Routing (4A0-112)

IS-IS protocol fundamentals per ISO 10589 and RFC 1195 for IP routing, TLV encoding (area address, intermediate system neighbors, IP internal/external reachability, extended IP reachability with wide metrics), IS-IS Hello (IIH) on point-to-point and broadcast networks, LSP types (L1 and L2 with sequence numbers and remaining lifetime), DIS election on broadcast LANs (priority and highest SNPA), IS-IS metrics (narrow default 0-63 vs wide metrics per RFC 5305), route leaking from L2 to L1 (RFC 5302 with down bit), IS-IS authentication (plain-text, MD5, HMAC-MD5), and IS-IS configuration and troubleshooting commands on Nokia SR OS.

25%

BGP Fundamentals for Services (4A0-114)

BGP fundamentals (RFC 4271) covering message types, EBGP and IBGP peering, UPDATE processing, and key path attributes; Multiprotocol BGP (RFC 4760) with AFI/SAFI encoding, MP_REACH_NLRI and MP_UNREACH_NLRI for VPN-IPv4 (AFI 1/SAFI 128) and VPN-IPv6 (AFI 2/SAFI 128); and BGP route reflection (RFC 4456) with originator-id, cluster-list, and reflection rules on Nokia SR OS.

25%

MPLS (4A0-103)

MPLS architecture (RFC 3031) with 32-bit shim header, label stack, LSR/LER roles, PHP; LDP (RFC 5036) downstream-unsolicited with T-LDP, LDP-IGP Sync, graceful restart; RSVP-TE (RFC 3209) PATH/RESV messaging, CSPF with bandwidth, admin-group, and SRLG constraints; RFC 4090 Fast Reroute (one-to-one and facility bypass); Make-Before-Break; and MPLS configuration and troubleshooting on Nokia 7750 SR OS.

25%

Services Architecture (4A0-104)

Nokia service model hierarchy (customer, service, SAP, SDP), Service Access Point (SAP) configuration on physical and logical ports, Service Distribution Point (SDP) with MPLS or GRE transport, pseudowire encapsulation (RFC 4448), service types: VPLS (Virtual Private LAN Service), VPRN (Virtual Private Routed Network), IES (Internet Enhanced Service), Epipe (Ethernet point-to-point), Apipe (ATM point-to-point), service OAM tools, and services architecture configuration and verification on Nokia 7750 SR OS.

How to Pass the Nokia NRS II Composite (IS-IS) Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 70 multiple-choice questions combining IS-IS routing (4A0-112), BGP Fundamentals for Services (4A0-114), MPLS (4A0-103), and Services Architecture (4A0-104) into a single composite exam for Nokia NRS II certification
  • Time limit: 120 minutes
  • Exam fee: $375

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 Composite (IS-IS) Study Tips from Top Performers

1The composite exam covers four domains equally - do not neglect any single area. A weakness in Services Architecture can offset strong IS-IS and MPLS knowledge.
2Create a study schedule that rotates through all four domains weekly rather than studying them sequentially - retention across all areas matters for one exam sitting.
3Know the Nokia service model hierarchy cold: Customer > Service > SAP/SDP > Pseudowire - Services Architecture questions test this structure extensively.
4Drill IS-IS TLV types and their purposes: Area Address (TLV 1), IS Neighbors (TLV 2), IP Internal Reachability (TLV 128), Extended IP Reachability (TLV 135) - TLV identification is heavily tested.
5Master the MP-BGP AFI/SAFI combinations for VPN services: VPN-IPv4 (1/128), VPN-IPv6 (2/128), and understand how they enable Nokia VPLS and VPRN services.
6Practice time management: 70 questions in 120 minutes means approximately 1.7 minutes per question. Flag difficult questions and return to them rather than spending too long on any single item.
7Use show commands for each domain in your lab: show router isis database/adjacency, show router bgp summary/routes vpn-ipv4, show router mpls lsp/forwarding, and show service id/base/all for services.

Frequently Asked Questions

What is on the Nokia 4A0-C03 NRS II Composite exam?

The Nokia 4A0-C03 combines four individual exams into one: IS-IS routing (4A0-112) covering ISO 10589 and RFC 1195, BGP Fundamentals for Services (4A0-114) covering RFC 4271, RFC 4760, and RFC 4456, MPLS (4A0-103) covering RFC 3031, LDP, RSVP-TE, and FRR, and Services Architecture (4A0-104) covering the Nokia service model with SAP, SDP, pseudowire, and service types (VPLS, VPRN, IES, Epipe). It is an alternative to taking the four exams separately for NRS II certification.

How long is the Nokia NRS II Composite exam and how many questions does it have?

The 4A0-C03 exam contains 70 multiple-choice questions with a 120-minute time limit. At roughly 1.7 minutes per question, time management across all four domains is critical.

What is the passing score for Nokia 4A0-C03?

Nokia requires a 70% score (49 of 70 correct) to pass the NRS II Composite exam. Aim for 85% or higher in practice exams - the breadth of four domains in one exam means weaknesses in any single area can impact your overall score.

How much does the Nokia 4A0-C03 exam cost?

The 4A0-C03 exam fee is $375 USD per attempt, paid to Pearson VUE at registration. This composite exam is more expensive per attempt than individual exams but costs less than taking all four separate exams ($125 each = $500 total).

Should I take the composite exam or individual exams for NRS II?

The composite exam (4A0-C03 or 4A0-C04) is ideal for experienced candidates confident across all four domains who want a single test. Taking the four individual exams separately (IS-IS 4A0-112 or OSPF 4A0-113, BGP Fundamentals 4A0-114, MPLS 4A0-103, Services Architecture 4A0-104) allows focused preparation on one domain at a time and costs $500 total vs $375 for the composite.

Where do I take the Nokia NRS II Composite exam?

The 4A0-C03 exam is delivered by Pearson VUE either at a Pearson VUE test center or via OnVUE online proctoring, where available. Schedule through pearsonvue.com/us/en/nokia.html with your Nokia candidate profile.