JN0-364: Service Provider Routing and Switching, Specialist (JNCIS-SP)

By Juniper · Browse Mode
About the Exam

This exam is part of Juniper’s Service Provider Routing and Switching specialist track. It is designed for networking professionals with beginner to intermediate knowledge of routing and switching implementations in Junos. Passing demonstrates basic understanding of routing and switching technologies, along with the ability to configure, monitor, and troubleshoot related platform features.

Exam Topics

  • Protocol-Independent Routing0%
  • Open Shortest Path First (OSPF)0%
  • Intermediate System to Intermediate System (IS-IS)0%
  • Border Gateway Protocol (BGP)0%
  • Layer 2 Bridging or VLANs0%
  • Spanning-Tree Protocols0%
  • Multiprotocol Label Switching (MPLS)0%
  • IPv60%
  • Tunnels0%
  • High Availability0%

How to Use This Practice Exam

  1. Browse — Read each question, select your answer, and reveal the explanation.
  2. Exam Mode — Simulate real exam conditions with a timed session and score report.
  3. Learn Mode — Spaced repetition schedules questions you struggle with for long-term retention.

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Last updated April 5, 2026 at 10:41 PM

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QuestionQ1

High Availability

You must ensure that a routing platform with redundant REs keeps forwarding packets even if one RE fails.

Which technology would you use to achieve this?

Explanation

Graceful Routing Engine Switchover (GRES) provides high availability for redundant Routing Engines by allowing a backup RE to take over after an active RE failure while packet forwarding continues.

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QuestionQ2

Border Gateway Protocol (BGP)

Click the Exhibit button.

Question Image

Which destination IP address matches the aggregate route displayed in the exhibit?

Explanation

The aggregate prefix 10.16.2.0/23 spans the address range from 10.16.2.0 through 10.16.3.255. Address 10.16.3.79 is within that range.

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QuestionQ3

Border Gateway Protocol (BGP)

You are assessing BGP between two Juniper routers, and the BGP session remains in the Idle state.

What could cause this behavior?

Explanation

An incorrect peer IP address prevents the router from establishing the TCP connection to the intended BGP neighbor, so the BGP finite-state machine cannot progress to an established session. Juniper documents that inability to reach a peer’s IP address indicates a TCP transport connection problem, and that BGP returns to Idle when errors occur. Troubleshooting BGP Sessions | Junos OS | Juniper Networks

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QuestionQ4

Open Shortest Path First (OSPF)

What prevents routing loops within a single-area OSPF network?

Explanation

OSPF uses Dijkstra’s shortest-path-first (SPF) algorithm on a shared link-state database to calculate a loop-free shortest-path tree for the area.

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QuestionQ5

Intermediate System to Intermediate System (IS-IS)

What is the default route-export behavior for IS-IS in Junos OS?

Explanation

The default IS-IS export policy rejects all routes. Routes must be explicitly accepted by a configured export policy before they are redistributed from the routing table into IS-IS.

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