20+ practice questions focused on Services — one of the most tested topics on the Cisco SPCOR / CCNP Service Provider Core 350-501 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Services PracticeA service provider is deploying MPLS Layer 3 VPN and needs to ensure that BGP next-hop resolution works correctly for VPNv4 prefixes learned from a route reflector. The PE routers are directly connected to the RR via iBGP, and there is an IGP running within the MPLS core. Which condition must be met for the PE to install the VPNv4 prefix into its routing table?
Explanation: For a PE router to install a VPNv4 prefix learned from a route reflector into its routing table, the BGP next-hop (typically the remote PE) must be reachable via the IGP with an associated MPLS label. This ensures that the transport LSP exists to forward traffic toward the next-hop, which is required for MPLS L3VPN operation. Without an MPLS label in the IGP for the next-hop, the PE cannot build the necessary label stack and will not install the VPNv4 route.
A service provider is designing a multicast solution for a Layer 3 VPN. They want to use MVPN with BGP signaling (draft-rosen). The PE routers are configured with VRF and multicast routing enabled. Which BGP address family must be enabled between PE routers to carry multicast routing information?
Explanation: In a draft-rosen MVPN (Multicast VPN) implementation, BGP is used to signal multicast routing information between PE routers. The MCAST-VPN address family (AFI 25, SAFI 5) is specifically defined to carry multicast VPN routes, including Intra-AS I-PMSI A-D routes and S-PMSI A-D routes, enabling the exchange of multicast state and tunnel information across the MPLS/VPN backbone.
A network engineer is troubleshooting an MPLS TE tunnel that is not coming up. The tunnel is configured with a strict explicit path, and the path includes an interface that is currently down. Which action should the engineer take to allow the tunnel to use an alternative path?
Explanation: Option C is correct because changing the explicit path from 'strict' to 'loose' for the down interface allows the MPLS TE tunnel to use an alternative next-hop that is reachable, even if the specified interface is down. A strict explicit path requires every hop to be directly connected, so a down interface prevents the tunnel from coming up. By making the hop loose, the router can route around the failed link using the IGP's best path to the next specified node.
Which TWO statements about BGP FlowSpec (RFC 8955) are correct?
Explanation: Option A is correct because BGP FlowSpec (RFC 8955) can be deployed between a route reflector and its clients. The route reflector propagates FlowSpec NLRI (Network Layer Reachability Information) to its clients, allowing the clients to install traffic filtering rules without requiring a full BGP mesh. This is a common deployment model in service provider networks to distribute flow-spec routes efficiently.
Which THREE characteristics apply to the BGP-LS (BGP Link State) protocol?
Explanation: BGP-LS uses a separate address family (AFI 16388 / SAFI 71) from VPNv4 (AFI 1 / SAFI 128) to carry link-state information. This separation allows BGP-LS to operate independently from VPNv4 routes, enabling the collection and distribution of IGP topology data without interfering with MPLS VPN signaling.
+15 more Services questions available
Practice all Services questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Services. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Services questions on the 350-501 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Services is tested as part of the Cisco SPCOR / CCNP Service Provider Core 350-501 blueprint. Practicing with targeted Services questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free 350-501 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Services is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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