JN0-363 practice examsIn development
Juniper Networks Certified Specialist, Service Provider Routing and Switching
The service provider model end to end: a core carrying many customers with the interior protocol confined to infrastructure routes and loopbacks, BGP central and scaled through route reflectors, and a layered mental model where a hidden route means an unresolvable next hop; then MPLS forwarding on labels so the core carries traffic it has no IP route for, LDP and RSVP label distribution, Layer 3 VPNs isolating customers with VRFs, route distinguishers and route targets, Layer 2 pseudowires and multipoint VPLS or EVPN, and the class of service that turns connectivity into a guaranteed service.
What you get
Papers are cut from the bank and weighted like the real exam, and no question appears in two of them. Every wrong answer comes back on later days until you have it right.
What the exam covers
| Service provider routing, IS-IS, OSPF and BGP | Not published |
| MPLS, VPNs and provider services | Not published |
Two sample questions
1. Why does a provider commonly run both label distribution protocols?
- One carries version four traffic and the other version six in practice
- One operates in the core and the other only at the edge
- One gives reachability everywhere and the other engineers paths — correct
- One allocates labels and the other verifies them
Why: LDP provides a path between every pair of routers with no per-path work, and RSVP is added where a specific route or reservation is required.
2. What is the effect of an unreachable next hop?
- More stability
- Faster routing
- The route is hidden — correct
- A new label
Why: An unreachable next hop makes the BGP route inactive (hidden).
The real JN0-363 exam
| Length | 90 minutes |
|---|---|
| Questions | 65 |
| Pass mark | Scaled; Juniper does not publish the percentage |
| Price | $200 USD |
| Recommended before you sit it | None enforced. JNCIA-Junos knowledge is assumed. |
| Valid for | 3 years |
Exam facts as published by Juniper; always check the vendor’s page before you book.
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