300-515Updated 17d ago · Sep 17, 2026
300-515 SPVI: Implementing Cisco Service Provider VPN Services
146 questions across 1 topics, with suggested answers, explanations where available, and imported community discussion. The first 14 questions are free to preview.
Topics
| # | Topic | Questions | Free |
|---|---|---|---|
| 1 | VPN Architecture | 121 | 14 |
Preview
14 of 121 accessibleQuestion 1 · VPN Architecture Open
An engineer is investigating an ongoing network outage. Which command can display live log output for a process or service running on a network device?
Answer: D
The `debug` command produces real-time diagnostic output for enabled processes or services, making it useful for troubleshooting an active network outage.
Question 2 · Layer 2 VPNs Open
What tool identifies the failure point in a P2MP LSP from the ingress LSR?
Answer: C
P2MP traceroute performs hop-by-hop tracing of the point-to-multipoint LSP from the ingress LSR, isolating the location of a data-plane fault. P2MP ping validates LSP reachability but does not identify the failed hop.
**Learn more:** [P2MP - LSP Traceroute](https://apps.juniper.net/feature-explorer/feature/3989) · [Junos OS Evolved Hardware Features](https://www.juniper.net/documentation/us/en/software/junos/release-notes/23.4/junos-evo-release-notes-23.4r2/topics/new-features/feature-descriptions/hardware-23.4r2-s1-1.html)
Question 3 · VPN Architecture Open
In a typical service-provider environment, which two tools help scale PE router connectivity requirements? (Choose two.)
Answer: A, E
Route reflectors reduce the full-mesh iBGP peering requirement among PE routers. BGP confederations improve scalability by partitioning a large BGP autonomous system into smaller internal sub-autonomous systems while presenting a single AS externally.