100+ Free Cisco SPRI 300-510 Practice Questions

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What is the default Cisco IOS XR Segment Routing Global Block (SRGB)?

100000-199999

16000-23999

20000-30000

10000-15999

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Key Facts: Cisco SPRI 300-510 Exam

$300

Exam Fee

USD per attempt

90 min

Time Limit

Pearson VUE delivery

55-65

Exam Questions

Cisco published estimate

3 yrs

Validity

CCNP Service Provider

4 domains

Blueprint

35/15/25/25 weighting

Pearson VUE

Test Delivery

In-person or online proctored

Cisco 300-510 SPRI v1.1 is a 90-minute, ~55-65 question concentration exam for CCNP Service Provider that costs $300 USD and is delivered through Pearson VUE. The blueprint weights Unicast Routing 35%, Multicast Routing 15%, Routing Policy and Manipulation 25%, and MPLS and Segment Routing 25%. Topics include OSPF/IS-IS multiarea/multilevel, BGP scalability with route reflectors and confederations, IPv6 transition (6PE, 6to4, NAT64, MAP-T), multicast with PIM-SM/SSM/Auto-RP/BSR/Anycast/Phantom RP and MSDP, IOS XR RPL, and MPLS plus Segment Routing with SR-TE, PCE, Flex-Algo, TI-LFA, and SRv6 (locator/function and micro-segment). Cisco does not publish the passing score, and the credential is valid for 3 years.

Sample Cisco SPRI 300-510 Practice Questions

Try these sample questions to test your Cisco SPRI 300-510 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which OSPF area type allows external Type 5 LSAs but blocks Type 4 ASBR-summary LSAs from non-backbone ABRs in a specific topology, while still permitting Type 3 summary LSAs?

A.Stub area

B.Totally stubby area

C.Not-so-stubby area (NSSA)

D.Backbone area (Area 0)

Explanation: Area 0, the OSPF backbone, accepts all LSA types including Type 1, Type 2, Type 3, Type 4, and Type 5 external LSAs. Stub variants block Type 5 (and Type 4) entirely; NSSAs replace Type 5 with Type 7 inside the area and convert at the ABR.

2An OSPFv2 ABR receives a Type 1 router LSA from a non-backbone area. What does the ABR do with that LSA when advertising the prefix into Area 0?

A.Floods the original Type 1 LSA into Area 0

B.Generates a Type 3 summary LSA describing the prefix into Area 0

C.Generates a Type 4 ASBR-summary LSA into Area 0

D.Translates it into a Type 7 LSA

Explanation: Type 1 (router) and Type 2 (network) LSAs are flooded only inside their originating area. The ABR aggregates the intra-area prefixes into Type 3 summary LSAs and floods those into adjacent areas, which is how OSPF achieves inter-area reachability.

3In OSPFv3, which LSA type carries IPv6 prefixes that were carried by Type 1 and Type 2 LSAs in OSPFv2?

A.Link LSA (Type 8)

B.Intra-Area Prefix LSA (Type 9)

C.Inter-Area Prefix LSA (Type 3)

D.AS-External LSA (Type 5)

Explanation: OSPFv3 separates topology from addressing. Router and network LSAs describe topology only; the Intra-Area Prefix LSA (Type 9) carries the actual IPv6 prefixes attached to a router or transit network. Type 8 Link LSAs carry link-local data per link.

4Two OSPF routers on the same Ethernet segment are stuck in EXSTART/EXCHANGE. Which mismatch most commonly causes this stuck state?

A.Mismatched OSPF area IDs

B.Mismatched MTU on the interfaces

C.Mismatched hello/dead timers

D.Mismatched authentication keys

Explanation: OSPF compares the MTU value in the DBD packet during database exchange. If MTUs differ, the higher-MTU side rejects the DBD and the adjacency remains stuck in EXSTART or EXCHANGE. Use ip ospf mtu-ignore on the interface only as a workaround.

5Which IS-IS PDU is used to acknowledge receipt of an LSP on a point-to-point link?

A.CSNP

B.PSNP

C.IIH

D.LSP

Explanation: On point-to-point links, a Partial Sequence Number PDU (PSNP) acknowledges each received LSP. CSNPs are sent periodically on broadcast links to advertise the full database; on P2P, CSNP is sent only once at adjacency formation.

6An IS-IS router is configured as Level 1-2 by default on a Cisco IOS XR router. What does this imply for its LSDB?

A.It maintains only one LSDB containing both L1 and L2 information

B.It maintains two separate LSDBs, one for L1 and one for L2

C.It exchanges only L2 routes with neighbors

D.It can only form adjacencies with L1 routers

Explanation: An L1-L2 router maintains two completely separate link-state databases: one for L1 (intra-area) and one for L2 (inter-area, the backbone). It can be the bridge between an area and the L2 backbone and runs SPF independently on each database.

7Which TLV in an IS-IS LSP carries IPv6 reachability information for multi-topology IS-IS?

A.TLV 22 (Extended IS Reachability)

B.TLV 135 (Extended IP Reachability)

C.TLV 236 (IPv6 Reachability)

D.TLV 137 (Dynamic Hostname)

Explanation: IS-IS originally only supported IPv4. RFC 5308 defined TLV 236 to carry IPv6 reachability information, and TLV 232 carries IPv6 interface addresses. Multi-topology IS-IS (RFC 5120) uses TLV 222 to carry topology-specific IS reachability.

8Which statement about OSPF and IS-IS comparison in service-provider deployments is correct?

A.IS-IS uses TCP for reliable delivery; OSPF uses IP protocol 89

B.IS-IS runs directly over Layer 2 (CLNS); OSPF runs over IP

C.OSPF supports only IPv4; IS-IS supports only IPv6

D.IS-IS requires a designated router on point-to-point links

Explanation: IS-IS runs directly over the data link layer using CLNS PDUs and does not require an IP stack to operate. OSPF runs over IP (protocol 89). Many service providers prefer IS-IS because it is independent of the IP transport that it carries.

9A service provider has 200 iBGP-speaking PE routers. Which BGP scalability technique avoids the n*(n-1)/2 full mesh while keeping a single AS?

A.BGP confederations

B.Route reflectors

C.BGP local-AS

D.BGP peer groups

Explanation: Route reflectors (RFC 4456) allow a single AS to scale beyond a full iBGP mesh. PEs peer with one or more RRs as clients, and the RR re-advertises iBGP routes to its clients, breaking the iBGP split-horizon rule under controlled conditions.

10Which BGP attribute is used by route reflectors to detect routing loops between RRs in the same cluster?

A.ORIGINATOR_ID

B.CLUSTER_LIST

C.AS_PATH

D.COMMUNITY

Explanation: When an RR reflects a route, it appends its own CLUSTER_ID to the CLUSTER_LIST. If a receiving RR sees its own CLUSTER_ID in the list, it discards the update, preventing loops. ORIGINATOR_ID separately prevents the route from being reflected back to the originator.

About the Cisco SPRI 300-510 Exam

The Cisco 300-510 SPRI exam validates the skills required to implement and troubleshoot service-provider advanced routing solutions. The blueprint covers OSPF and IS-IS multiarea/multilevel design, BGP scalability with route reflectors and confederations, BGP communities/FlowSpec/dampening/multihoming, IPv6 transition (6PE, 6to4, NAT64, MAP-T), fast convergence with BFD/NSF/NSR/LFA/TI-LFA/BGP PIC, multicast (PIM-SM, SSM, Auto-RP/BSR/Anycast/Phantom RP, MSDP, MLDP/P2MP), Cisco IOS XR Routing Policy Language (RPL) plus route-map manipulation, and MPLS and Segment Routing including SR-TE with PCE, Flex-Algo, and SRv6 locator/function/micro-segment behaviors. SPRI is one of the concentration exams for the CCNP Service Provider certification.

Assessment

Approximately 55-65 multiple-choice and drag-and-drop items covering Unicast Routing (35%), Multicast Routing (15%), Routing Policy and Manipulation (25%), and MPLS and Segment Routing (25%)

Time Limit

90 minutes

Passing Score

Cisco does not publish the passing score

Exam Fee

$300 USD (Cisco / Pearson VUE)

Cisco SPRI 300-510 Exam Content Outline

35%

Unicast Routing

OSPFv2/v3 areas and LSA types (1-7), IS-IS L1/L2/L1-L2 routers and PDUs (IIH, LSP, CSNP, PSNP), BGP scalability (route reflectors, confederations, ORIGINATOR_ID/CLUSTER_LIST), well-known communities (NO_EXPORT, NO_ADVERTISE, LOCAL_AS), BGP FlowSpec, max-prefix, dampening, TTL security, dynamic neighbors, IPv6 transition (static, 6to4 2002::/16, 6PE, NAT64, MAP-T), fast convergence (BFD, NSF, NSR, LFA, TI-LFA, BGP PIC edge/core, additional-paths)

15%

Multicast Routing

Multicast distribution trees, IGMPv2/IGMPv3 and MLD signaling, IPv4 multicast-to-MAC mapping (23-bit overlap), MP-BGP IPv4 multicast SAFI for RPF, PIM-SM shared/SPT trees and Register, RP discovery via Auto-RP/BSR/Anycast/Phantom RP, BIDIR-PIM, SSM ranges 232/8 (IPv4) and FF3x::/32 (IPv6), MSDP SA propagation and RPF, MLDP and P2MP for mVPN

25%

Routing Policy and Manipulation

Cisco IOS XR RPL syntax (route-policy, end-policy, if/then/elseif/else/endif, set, drop, pass, done), prefix-sets and community-sets, AS-path regex, parameterized and hierarchical policies, route-map alternatives, route-type matching for OSPF/IS-IS, route-tag-based redistribution loop prevention, BGP best-path tuning (weight, local-preference, MED, AS-path prepend, communities)

25%

MPLS and Segment Routing

LDP (TCP 646), RSVP-TE (PATH/RESV, FRR), BGP labeled unicast and Unified/Seamless MPLS, BGP-free core, OSPF Type 10 opaque LSAs and IS-IS sub-TLVs for SR, SRGB default 16000-23999 and SRLB, TI-LFA post-convergence backups, LDP-to-SR migration with sr-prefer and Mapping Server, SR-TE candidate-path preference and color-based automated steering, PCE/PCEP, SRLG and Flex-Algo, Tree-SID for multicast, SRv6 locator/function (End, End.X, End.DT4, End.DX2), SRH, and uSID/cSID compression

How to Pass the Cisco SPRI 300-510 Exam

What You Need to Know

Passing score: Cisco does not publish the passing score
Assessment: Approximately 55-65 multiple-choice and drag-and-drop items covering Unicast Routing (35%), Multicast Routing (15%), Routing Policy and Manipulation (25%), and MPLS and Segment Routing (25%)
Time limit: 90 minutes
Exam fee: $300 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

Cisco SPRI 300-510 Study Tips from Top Performers

1Memorize the OSPF LSA matrix: stub blocks Type 4/5, totally stubby blocks Type 3/4/5, NSSA blocks Type 5 and uses Type 7, totally NSSA blocks Type 3/4/5 and uses Type 7. The exam tests this directly.

2Drill IS-IS PDUs and TLVs: IIH (hello), LSP (link-state), CSNP (full database, periodic on broadcast), PSNP (acks on point-to-point), TLV 22 (extended IS reach), TLV 135 (extended IP reach), TLV 236 (IPv6 reach).

3Practice IOS XR RPL syntax in a real lab: route-policy/end-policy, if condition then action endif, prefix-sets and community-sets, parameterized policies with $args, and the difference between drop, pass, and done.

4Master Segment Routing fundamentals: default SRGB 16000-23999, prefix-SID label = SRGB base + index, adjacency-SID local from SRLB, TI-LFA computes the post-convergence path, and SR-TE policies use preference to choose between candidate paths.

5Build a clear mental model of SRv6: SID = Locator + Function (End, End.X, End.DT4 for VPN IPv4, End.DX2 for L2 cross-connect), SRH is IPv6 routing header type 4, and cSID/uSID packs multiple instructions into one 128-bit address.

6Know the multicast addressing edges cold: IPv4 SSM 232/8, IPv6 SSM FF3x::/32, IPv4-to-MAC 23-bit overlap (32:1 collisions), Auto-RP on 224.0.1.39/40, BSR via PIM messages, and Phantom RP requirements for BIDIR-PIM.

Frequently Asked Questions

What is the Cisco 300-510 SPRI exam?

Cisco 300-510 SPRI (Implementing Cisco Service Provider Advanced Routing Solutions, v1.1) is one of the concentration exams for the CCNP Service Provider certification. It validates skills in advanced unicast routing (OSPF, IS-IS, BGP), multicast routing (PIM-SM, SSM, MSDP), routing policy with IOS XR RPL, and MPLS and Segment Routing including SR-TE, Flex-Algo, and SRv6.

How many questions are on the SPRI 300-510 exam and how long is it?

The SPRI 300-510 exam has approximately 55-65 questions and you have 90 minutes to complete it. Question formats include multiple-choice, drag-and-drop, and a small number of simulation-style items. Cisco does not publish a fixed passing score; scoring is scaled and varies by exam version.

How much does the Cisco 300-510 SPRI exam cost?

The Cisco 300-510 SPRI exam costs $300 USD per attempt and is delivered through Pearson VUE either at a testing center or via online proctoring. Cisco partners and learning programs may provide vouchers or training-included bundles. A 5-day waiting period applies between failed attempts.

What topics does the SPRI 300-510 exam cover?

SPRI weights Unicast Routing at 35% (OSPF/IS-IS multiarea/multilevel, BGP RR/confederation, IPv6 transition, BFD/NSF/PIC), Multicast Routing at 15% (PIM-SM/SSM, Auto-RP/BSR/Anycast/Phantom, MSDP, MLDP), Routing Policy and Manipulation at 25% (IOS XR RPL, prefix-sets, community-sets, AS-path regex, BGP attributes), and MPLS and Segment Routing at 25% (LDP/RSVP-TE, SR with OSPF/IS-IS extensions, SR-TE, PCE/PCEP, Flex-Algo, TI-LFA, SRv6 with locator/function and uSID).

How long is the CCNP Service Provider certification valid?

Cisco professional-level certifications, including CCNP Service Provider, are valid for 3 years from the date you pass. You can recertify by passing a current professional or expert-level Cisco exam before expiration, or by earning Cisco Continuing Education (CE) credits to extend the credential.

Do I need experience to take the SPRI 300-510 exam?

Cisco does not require formal prerequisites for the SPRI exam, but recommends 3-5 years of service provider networking experience. Hands-on familiarity with IOS XR (RPL syntax, SR configuration), BGP at scale, multicast, and MPLS will significantly improve pass rates compared with theoretical study alone.

How should I prepare for the SPRI 300-510 exam?

Combine the official Cisco SPRI training (instructor-led or e-learning) with the SPRI cert guide, Cisco Learning Network practice content, and lab work in Cisco Modeling Labs or DevNet sandboxes. Build labs for OSPF/IS-IS multiarea, BGP RR with FlowSpec and PIC, PIM-SM with Anycast RP and MSDP, RPL policies, LDP-to-SR migration with sr-prefer, SR-TE with color steering, Flex-Algo, and SRv6 with End.DT4 and uSID.

100+ Free Cisco SPRI 300-510 Practice Questions

Cisco SPRI 300-510 (CCNP Service Provider Routing)

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