JN0-351 · ● Active · Professional · Juniper Networks
Exam facts
| Field | Value |
|---|---|
| Cost | $300 USD |
| Duration | 90 minutes |
| Questions | 65 (multiple-choice, multiple-response) |
| Passing | Approximately 60–70% (pass/fail; exact score not published by vendor) |
| Format | Multiple-choice, multiple-response |
| Delivery | Pearson VUE (in-person and OnVUE online) |
| Languages | English only |
| Valid | 3 years |
| Renewal | N/A (recertify by retaking exam or passing higher-level cert) |
| Prerequisites | JNCIA-Junos (required) |
| Released | Active; Junos 23.1 covered |
| Retiring | N/A (no retirement announced) |
Vendor source — HPE Juniper Networking JNCIS-ENT Track ↗ Official exam guide — Juniper JNCIS-ENT Exam Syllabus ↗ Pearson VUE registration — Juniper Networks Testing ↗
About
JNCIS-ENT is the specialist-level certification in the Juniper enterprise routing and switching track, designed for experienced networking professionals with beginner to intermediate knowledge of Junos routing and switching implementations. Candidates must hold current JNCIA-Junos before attempting this exam. The certification validates understanding of layer 2/3 protocols, BGP, MPLS basics, high availability, IPv6, and enterprise network management on Juniper platforms.
Domain context — Networking
Enterprise routing and switching — the design, deployment, and operation of core network infrastructure using vendor-specific platforms. JNCIS-ENT focuses on Juniper's Junos OS ecosystem.
Read full deep dive — Juniper Networks Ecosystem ↗
Topics covered
The JN0-351 exam blueprint covers the following major domains:
- Layer 2 Switching and VLANs (VLAN concepts, configuration, monitoring, troubleshooting)
- Spanning Tree Protocol (STP) — loop prevention and topology management
- Layer 2 Security (MAC filtering, port security, firewall filters)
- BGP (Border Gateway Protocol) — operational and conceptual elements
- Protocol-Independent Routing
- IS-IS (Intermediate System to Intermediate System)
- MPLS Basics (Label-switched paths, traffic engineering concepts)
- IPv6 in enterprise networks
- Tunnels (Generic Routing Encapsulation, IP-in-IP)
- High Availability (VRRP, link aggregation, graceful restart, redundancy)
- Network management and monitoring on Junos
Source: Juniper JNCIS-ENT Exam Syllabus ↗
Common skills at Networking · Professional
Shared content for the Networking domain at Professional level — not specific to this cert.
- OSI model layers 2–7 configuration and troubleshooting
- Routing protocol design (static, dynamic, policy-based)
- BGP and IGP operation and optimization
- Network security policy implementation
- High-availability architecture and failover mechanisms
- VPN and encryption fundamentals
- Network monitoring and performance management
- Enterprise multi-site network design
Recommended courses at Networking · Professional
| Provider | Title | Cost | URL |
|---|---|---|---|
| Juniper Learning Portal | Enterprise Routing and Switching (JNCIS-ENT) | Varies | ↗ |
| Udemy | Juniper JNCIS-ENT - JN0-351 Complete Course | $15–$75 | ↗ |
| Juniper Open Learning | Junos Operating System Fundamentals + routing/switching modules | Free / Paid | ↗ |
| INE (Instructor-led) | Juniper JNCIS-ENT Bootcamp | Varies | ↗ |
| CBT Nuggets | Juniper Certified Internet Specialist Enterprise Routing and Switching (JNCIS-ENT) | Subscription | ↗ |
Course-selection rule: Each course must be specifically for JN0-351 / JNCIS-ENT, not generic "Juniper networking." Juniper's official Learning Portal is the primary source; third-party platforms like Udemy supplement with exam-focused content.
Practice exams
| Provider | Title | Cost | URL |
|---|---|---|---|
| ExamTopics | Juniper JN0-351 Practice Questions | Free / Premium | ↗ |
| Exams4sure | JN0-351 Practice Exam | $19–$29 | ↗ |
| NWExam | JNCIS-ENT Practice Test | Free / Paid | ↗ |
Note: Vendor-specific practice exams (e.g., Boson, Pearson Test Prep) do not currently offer dedicated JN0-351 packs. Third-party exam simulators above are the primary option for hands-on practice.
Books
| Title | Author | Publisher | Year | URL |
|---|---|---|---|---|
| Juniper Day One: Exploring BGP (revised) | Aviva Garrett | Juniper Networks | 2017 | ↗ |
| Juniper JNCIS-ENT - JN0-351 - Complete Course | Packt Publishing | Packt Publishing | 2020 | ↗ |
| JNCIA-Junos Study Guide (foundational, covers prerequisites) | Juniper Networks | O'Reilly / Juniper | 2019+ | ↗ |
Book rule: Juniper publishes "Day One" guides and official courseware directly through its learning portal. Dedicated JN0-351 study guides are limited; candidates should supplement with official Juniper documentation and vendor-provided online resources. The foundation JNCIA-Junos study materials are essential prerequisites.
Typical job titles at Networking · Professional
Network Engineer · Senior Network Engineer (Juniper Enterprise) · Juniper Systems Engineer · Network Architect (Enterprise) · Infrastructure Engineer (Routing & Switching)
(Job titles drawn from current job-board postings that list JNCIS-ENT or JN0-351 as required or preferred.)
Salary
| Region | Range | Source |
|---|---|---|
| USD | $89,000 – $143,000 | ZipRecruiter ↗ · VelvetJobs ↗ |
| ZAR | No region-specific data available — use general Juniper Network Engineer role or South African IT salary surveys | PayScale ZA ↗ |
| GBP | No region-specific data available — use UK Network Engineer or IT Jobs Watch general networking roles | IT Jobs Watch ↗ |
Salary rule: USD ranges reflect actual 2026 Juniper Network Engineer postings on major job boards. ZAR and GBP data for this specific cert are not publicly available; regional IT salary surveys and general networking engineer benchmarks are more reliable indicators.
Skills validated
Cert-specific — what this exam actually tests.
- BGP operation and configuration (route propagation, policy, AS path filtering)
- Layer 2 switching and VLAN design on Junos
- Spanning Tree Protocol and redundancy mechanisms
- MPLS fundamentals and label-switched path setup
- IPv6 deployment and prefix management
- Network tunneling (GRE, IP-in-IP)
- High-availability features (VRRP, link aggregation groups, graceful restart)
- Firewall filters and security policy implementation
- Junos configuration modes and operational commands
- Network troubleshooting and diagnostic tools
Related certifications
- Prerequisite: JNCIA-Junos ↗ (must hold current before attempting JNCIS-ENT)
- Stacks with: Other Juniper specialist certs at same level (JNCIS-Security, JNCIS-SP)
- Leads to: JNCIP-ENT ↗ (Expert level in enterprise routing/switching)
- Further progression: JNCIE-ENT (highest level; lab-based, most rigorous)
- Vendor overview: Juniper Networks Vendor Overview ↗
Sources
- HPE Juniper Networking JNCIS-ENT Track ↗
- Juniper JNCIS-ENT Exam Syllabus and Preparation Guide ↗
- Pearson VUE Juniper Networks Testing ↗
- Juniper Learning Portal ↗
- ZipRecruiter: Juniper Network Engineer Salary ↗
- VelvetJobs: Juniper Network Engineer Salary ↗
- Udemy: Juniper JNCIS-ENT Complete Course ↗
- ExamTopics: Juniper JN0-351 Practice Questions ↗
Last verified: 2026-05-01 Parent ecosystem: Juniper Networks Parent domain: Networking Vendor overview: Juniper Networks