PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free Nokia SRA Composite Practice Questions

Pass your Nokia SRA Composite Exam (4A0-C02) exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
Not published Pass Rate
100+ Questions
100% Free
1 / 100
Question 1
Score: 0/0

In a Nokia VPRN, what does the 'auto-bind' command with keyword 'resolve' do?

A
B
C
D
to track
Same family resources

Explore More Nokia Service Routing Certifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Nokia BGP for Internet Routing (4A0-102)

Practice Questions

Nokia BGP Fundamentals for Services (4A0-114)

Practice Questions

Nokia IS-IS Routing Protocol (4A0-112)

Practice Questions

Nokia MPLS (4A0-103)

Practice Questions

Nokia Network Routing Specialist I (NRS I, 4A0-100)

Practice Questions

Nokia Network Routing Specialist II (NRS II Composite Written + Lab)

Practice Questions
2026 Statistics

Key Facts: Nokia SRA Composite Exam

80

Exam Questions

Nokia 4A0-C02 exam profile

150 min

Exam Duration

Nokia 4A0-C02 exam profile

70%

Passing Score

Nokia SRC scoring policy

$400

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 SRA Composite Exam (4A0-C02) is an 80-question, 150-minute multiple-choice test delivered through Pearson VUE for $400 USD with a 70% passing score. It combines four advanced exams into one: BGP for Internet Routing (RFC 4271, attributes, scaling, RPKI), VPLS (RFC 4665, LDP/BGP signaling, multihoming), VPRN (RFC 4364, MP-BGP VPN-IPv4, inter-AS options), and QoS (classification, HQoS, scheduling, policing). The SRA Composite earns the Nokia Service Routing Architect certification and serves as a recertification path for existing SRA holders. The credential is valid for three years.

Sample Nokia SRA Composite Practice Questions

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

1Which BGP attribute is used to detect routing loops in inter-AS routing?
A.AS_PATH
B.NEXT_HOP
C.LOCAL_PREF
D.MULTI_EXIT_DISC
Explanation: The AS_PATH attribute lists the autonomous systems through which a route has passed. When a BGP speaker receives a route containing its own AS number in the AS_PATH, it detects a loop and rejects the route.
2What is the effect of prepending your own AS number multiple times to the AS_PATH attribute?
A.It makes the route appear less attractive to inbound traffic by lengthening the AS_PATH
B.It increases the LOCAL_PREF value for the route
C.It adds additional next-hop addresses to the route
D.It enables BGP route reflector functionality
Explanation: AS_PATH prepending artificially lengthens the AS_PATH by inserting the local AS number multiple times. Since BGP prefers shorter AS_PATHs, this makes the route less preferred by remote ASes, effectively influencing inbound traffic to choose alternative paths.
3Which BGP community value indicates that a route should NOT be advertised outside the local AS?
A.NO_EXPORT (0xFFFFFF01)
B.NO_ADVERTISE (0xFFFFFF02)
C.NO_EXPORT_SUBCONFED (0xFFFFFF03)
D.INTERNET (0x00000000)
Explanation: The NO_EXPORT well-known community (value 0xFFFFFF01) tells BGP peers that the route should not be advertised to external BGP peers. Routes carrying this community may be advertised within a confederation but not to standalone external ASes.
4In Nokia SR OS, which command applies a route policy to filter BGP routes received from a neighbor?
A.import-policy
B.export-policy
C.default-policy
D.receive-policy
Explanation: The import-policy command under the BGP neighbor or group configuration applies a route policy to inbound (received) BGP updates. This policy can accept, reject, or modify routes before they enter the BGP routing table.
5What is the primary purpose of RPKI (Resource Public Key Infrastructure) in BGP routing?
A.To validate that a BGP route announcement is authorized by the legitimate holder of the IP prefix
B.To encrypt BGP session traffic between peers
C.To assign BGP communities automatically based on prefix ownership
D.To replace the AS_PATH attribute with a cryptographic signature
Explanation: RPKI provides a framework for validating the legitimacy of BGP route announcements. Prefix holders create Route Origin Authorizations (ROAs) that specify which AS is authorized to originate a prefix. BGP validators use ROAs to classify routes as Valid, Invalid, or NotFound, enabling operators to filter hijacked routes.
6What is a Route Origin Authorization (ROA) in RPKI?
A.A cryptographically signed object that binds a specific AS number to an IP prefix and maximum prefix length
B.A BGP attribute exchanged between peers to validate routes
C.A certificate authority key used to sign BGP updates
D.A community value attached to validated routes
Explanation: A ROA is a digitally signed object in RPKI that specifies which AS number is authorized to originate a particular IP prefix and optionally the maximum prefix length allowed. Validators use ROAs to determine whether a BGP announcement is valid.
7In Nokia SR OS, which BGP decision step is evaluated FIRST when selecting the best path?
A.Highest LOCAL_PREF
B.Shortest AS_PATH
C.Lowest origin type
D.Lowest MED
Explanation: In the Nokia SR OS BGP best-path selection algorithm, the first attribute evaluated (after skipping next-hop unreachable routes) is LOCAL_PREF. The route with the highest LOCAL_PREF value is preferred, as LOCAL_PREF indicates the degree of preference for exiting the AS via a particular path.
8What is the purpose of the BGP MULTI_EXIT_DISC (MED) attribute?
A.To influence inbound traffic from a neighboring AS by indicating the preferred entry point
B.To set the maximum number of hops a BGP route can traverse
C.To encrypt BGP updates between directly connected peers
D.To determine the local preference within the originating AS
Explanation: MED is an optional non-transitive attribute that allows an AS to suggest to a neighboring AS the preferred path for inbound traffic when multiple entry points exist. A lower MED value is preferred. Unlike LOCAL_PREF, MED is exchanged between ASes but is not propagated beyond the receiving AS.
9Which BGP message type is used to withdraw a previously advertised route?
A.UPDATE message with an empty NLRI field and the withdrawn route in the Withdrawn Routes field
B.NOTIFICATION message with withdrawal code
C.ROUTE-REFRESH message with withdraw flag
D.KEEPALIVE message with route-flush option
Explanation: BGP uses UPDATE messages to both advertise and withdraw routes. When withdrawing a route, the UPDATE message includes the route in the Withdrawn Routes field while the NLRI and path attributes fields may be empty. There is no separate withdrawal message type.
10What is the role of a BGP Route Reflector (RR) in a large AS?
A.It reduces the full-mesh iBGP requirement by allowing clients to exchange routes through the RR
B.It reflects eBGP routes directly between external peers
C.It modifies AS_PATH attributes to prevent loops in iBGP
D.It provides cryptographic validation of BGP updates
Explanation: A BGP Route Reflector eliminates the need for a full iBGP mesh by allowing client routers to peer only with the RR. The RR reflects routes learned from one client to all other clients and non-client peers, significantly reducing the number of iBGP sessions required in large networks.

About the Nokia SRA Composite Exam

The Nokia 4A0-C02 SRA Composite Exam is the highest-level Service Routing Certification (SRC) test that combines four advanced exams into one: BGP for Internet Routing (4A0-102), Virtual Private LAN Services (4A0-105), Virtual Private Routed Networks (4A0-106), and Quality of Service (4A0-107). It validates expert-level knowledge of BGP-based Internet routing, Layer-2 and Layer-3 VPN services, and QoS for service-provider networks on the Nokia 7750 SR running SR OS. The SRA Composite also serves as a recertification option for existing SRA holders.

Assessment

80 multiple-choice questions combining BGP for Internet Routing (4A0-102), VPLS (4A0-105), VPRN (4A0-106), and QoS (4A0-107) into a single composite exam for Nokia Service Routing Architect certification

Time Limit

150 minutes

Passing Score

70%

Exam Fee

$400 (Nokia / Pearson VUE)

Nokia SRA Composite Exam Content Outline

25%

BGP for Internet Routing (4A0-102)

BGP fundamentals (RFC 4271) with message types, EBGP/IBGP peering, and the Nokia SR OS BGP decision process; path attributes (ORIGIN, AS_PATH, NEXT_HOP, LOCAL_PREF, MED, COMMUNITY) and policy control with route policies, prefix-lists, and community-lists; BGP scaling with route reflection (RFC 4456, originator-id, cluster-list) and confederations (RFC 5065); BGP security with RPKI (RFC 6811) origin validation, route leak detection (RFC 7908), and BGP Flowspec; and BGP configuration and troubleshooting on Nokia 7750 SR OS.

25%

Virtual Private LAN Services - VPLS (4A0-105)

VPLS architecture (RFC 4665) with Ethernet frame forwarding, MAC learning, and split-horizon; LDP-based VPLS signaling (RFC 4762) with T-LDP, FEC 128/129, and PW status; BGP-based VPLS auto-discovery and signaling (RFC 4761, RFC 6624) with VPLS NLRI and route targets; advanced features including MAC management (learning, aging, flushing, move detection), multihoming with all-active/single-active (RFC 7623), IGMP snooping, and multicast optimization; and VPLS operations and troubleshooting on Nokia 7750 SR OS.

25%

Virtual Private Routed Networks - VPRN (4A0-106)

VPRN architecture based on RFC 4364 (BGP/MPLS IP VPNs) with route distinguishers and route targets; PE-CE routing (static, OSPF RFC 4577, BGP, IS-IS); MP-BGP VPN-IPv4 (AFI 1/SAFI 128) NLRI encoding, extended communities, and RT import/export policies; inter-AS VPN options (A: VRF-to-VRF, B: single-hop MP-EBGP, C: multi-hop MP-EBGP); VPRN services (internet access, shared services, extranets, hub-and-spoke, carrier-of-carriers); and VPRN operations and troubleshooting on Nokia 7750 SR OS.

25%

Quality of Service - QoS (4A0-107)

Nokia SR OS QoS architecture with per-service and per-network QoS policies; classification and marking including DSCP (RFC 2474/2475), 802.1p, and MPLS EXP; Hierarchical QoS (HQoS) with parent-child scheduling relationships; SAP-ingress, SAP-egress, network-ingress, and network-egress policy types; queuing (forwarding classes, queue weights) and scheduling (priority, weighted round-robin); traffic policing (single-rate three-color marker, RFC 2697) and shaping (token bucket); congestion management with RED/WRED profiles and tail-drop behavior; and QoS configuration and troubleshooting on Nokia 7750 SR OS.

How to Pass the Nokia SRA Composite Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 80 multiple-choice questions combining BGP for Internet Routing (4A0-102), VPLS (4A0-105), VPRN (4A0-106), and QoS (4A0-107) into a single composite exam for Nokia Service Routing Architect certification
  • Time limit: 150 minutes
  • Exam fee: $400

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 SRA Composite Study Tips from Top Performers

1The SRA Composite tests four equally-weighted domains - balanced preparation is essential. Devote roughly equal time to BGP, VPLS, VPRN, and QoS rather than over-indexing on any single area.
2Master the QoS policy chain on Nokia SR OS: SAP-ingress classification and marking, network-egress remarking, network-ingress remarking, SAP-egress queuing and scheduling. Know which policy type applies at each point.
3For VPRN, know the inter-AS VPN options cold: Option A (simple, VRF-to-VRF, scales poorly), Option B (ASBR does VPN-IPv4 redistribution, next-hop-self), Option C (multi-hop MP-EBGP with labeled unicast, best scaling).
4For VPLS, drill FEC 128 vs FEC 129 differences and BGP auto-discovery NLRI format - these are the most frequently tested signaling topics.
5For BGP, understand the Nokia SR OS decision process step-by-step (it has over 16 comparison steps) and how it differs subtly from Cisco and Juniper implementations.
6Practice time management: 80 questions in 150 minutes means approximately 1.9 minutes per question. Flag difficult questions and move on - you can return to them before submitting.
7Build a holistic lab topology that combines all four domains: BGP Internet edge with RPKI, VPLS for Layer-2 services, VPRN for Layer-3 VPNs, and end-to-end QoS policies from customer-facing SAPs through the MPLS core.

Frequently Asked Questions

What is on the Nokia SRA Composite exam (4A0-C02)?

The Nokia SRA Composite (4A0-C02) combines four advanced exams into one: BGP for Internet Routing (4A0-102) covering RFC 4271, attributes, scaling, and RPKI; VPLS (4A0-105) covering RFC 4665, LDP/BGP signaling, and multihoming; VPRN (4A0-106) covering RFC 4364, MP-BGP VPN-IPv4, and inter-AS VPN; and QoS (4A0-107) covering classification, HQoS, scheduling, policing, and congestion management on Nokia 7750 SR OS.

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

The 4A0-C02 exam contains 80 multiple-choice questions with a 150-minute time limit. At roughly 1.9 minutes per question, time management is critical given the breadth of four advanced domains.

What is the passing score for Nokia SRA Composite?

Nokia requires a 70% score (56 of 80 correct) to pass the SRA Composite exam. Aim for 85% or higher in practice exams - the breadth of four advanced domains means weaknesses in any area can significantly impact your overall score.

How much does the Nokia SRA Composite exam cost?

The 4A0-C02 exam fee is $400 USD per attempt, paid to Pearson VUE at registration. This reflects the advanced architect-level scope combining four upper-level SRC exams.

Can I use the SRA Composite for recertification?

Yes, the SRA Composite (4A0-C02) serves as a recertification option for existing SRA holders. Passing the composite or any current Nokia SRC exam before your credential expires maintains your SRA certification for another three years.

What are the prerequisites for the Nokia SRA Composite?

A valid Nokia NRS II certification is required before attempting the SRA Composite. NRS II can be earned through either the composite exam (4A0-C03 or 4A0-C04) or by passing the four individual NRS II exams. Nokia also recommends extensive hands-on experience with Nokia SR OS on the 7750 SR.