JNCIE-ENT (JPR-944)

The Juniper Networks Certified Internet Expert – Enterprise Routing and Switching (JNCIE-ENT) (JPR-944) exam is a challenging, hands-on lab exam designed for experienced networking professionals. It validates expertise in deploying, configuring, managing, and troubleshooting Junos-based enterprise routing and switching platforms.

The Enterprise Routing and Switching certification track showcases your expertise in networking technology, with a focus on Juniper Networks’ enterprise routing and switching solutions. JNCIE-ENT represents the highest level of achievement in this domain. The hands-on exam assesses your proficiency in deploying, configuring, managing, and troubleshooting Junos-powered enterprise routing and switching platforms.

Target Audience

The exam is designed for:

Individuals seeking the highest level of Juniper Networks certification in enterprise routing and switching.
Experienced network engineers with advanced knowledge of Junos OS.
Professionals aiming to demonstrate expert-level skills in network design, implementation, and troubleshooting.

Knowledge Required

In-depth understanding of networking concepts and protocols, including IPv4/IPv6, OSPF, BGP, multicast, and MPLS.
Extensive experience with Junos OS configuration and management.
Proficiency in troubleshooting complex network issues.
Familiarity with advanced features such as CoS, security, and automation.

Exam Details

The JNCIE-ENT (JPR-944) exam is an expert-level certification designed for networking professionals specializing in enterprise routing and switching. The exam is exclusively conducted in English and requires candidates to hold the JNCIP-ENT certification as a prerequisite. Delivered by Juniper Networks, this rigorous six-hour hands-on lab exam evaluates candidates’ ability to implement, configure, and troubleshoot enterprise networking solutions using Junos-based platforms. The exam is based on specific software versions, including vMX Virtual Router (18.3), EX Series Switch (18.4), and Junos Space Network Director (3.5). Juniper certifications remain valid for three years, after which recertification is required to maintain credential status.

Course Outline

The JNCIE-ENT (JPR-944) exam certification exam covers the following topics:

Topic 1: Understand Automation

On-box and off-box scripts

Commit, OP, and event scripts
PyEZ scripts

Junos Space

Importing devices into Network Manager
Configuration Management

Topic 2: Learn about Class of Service

CoS configuration and troubleshoot

Multiple queues
BA classifier
Multifield classifier
Rewrite rules
Policers

Topic 3: Understand EVPN

EVPN configuration and troubleshoot

Topic 4: IGP

OSPFv2, OSPFv3, and IS-IS

Authentication
Multi-area OSPF
NSSA
IPv4 routes using OSPFv3

Routing policy

Topic 5: BGP

BGP troubleshoot and configuration

Multi-ISP routing
IBGP route-reflector
Resolution of BGP Hidden Routes

BGP route-selection process

IBGP, LOCAL_PREF, AS-Path, Prepend/MED
Protocol preferences
BGP communities

BGP routing policy

Topic 6: System Setup

Device-level security

Securing local control plane

Interfaces

AE interface
LACP
VRRP

System-level configurations

SNMP
System logging
User account
DHCP services
NTP

Topic 7: Layer 2 Switching and Security

Virtual Chassis

VLAN

IRB interfaces
Private VLAN
802.1Q tunneling
Native VLAN

Spanning tree protocols

Root bridges, root ports, designated ports
Various guards for Spanning Tree

POE and telephony functions

VoIP VLAN assignments, VoIP class of service
POE and LLDP-MED

Layer 2 security

DAI, DHCP snooping, storm control
Layer 2 interface security features

Topic 8: Protocol Independent Routing

Protocol independent routing policy

Aggregate, generate, qualified next hops, and static routes

Filter-based forwarding

GRE tunnels

Exam FAQs: JNCIE-ENT (JPR-944)

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Exam General Guidelines

Juniper Networks upholds high standards for JNCP certifications by implementing recertification criteria to ensure certified professionals maintain relevant skills. These criteria apply across all JNCP certification tracks and may be updated as needed.

To renew a certification, candidates must either pass an exam or complete a higher-level course within the same track. This renewal extends the validity of all lower-level active certifications within the track, as well as any other active Associate-level certifications.

Certification holders can monitor their status through CertMetrics and receive periodic email notifications regarding their certification status. It is their responsibility to keep both their certifications and contact details up to date.

All JNCP certifications remain valid for three years, after which they will expire if not renewed within the specified timeframe.

Study Guide for JNCIE-ENT (JPR-944)

1. Understand Exam Objectives

To succeed in the JNCIE-ENT (JPR-944) exam, it is crucial to understand its core objectives. This hands-on lab exam assesses advanced enterprise routing and switching expertise using Junos-based platforms. Candidates must demonstrate proficiency in designing, implementing, configuring, managing, and troubleshooting complex enterprise networks. Key focus areas include OSPF, BGP, EVPN-VXLAN, multicast, Layer 2 and Layer 3 technologies, high availability, security policies, and network automation. A thorough understanding of these topics ensures readiness for the exam and validates an individual’s ability to manage real-world enterprise network environments effectively.

2. Utilize Recommended Training

Juniper Networks offers recommended training to help candidates effectively prepare for the JNCIE-ENT (JPR-944) certification exam. This includes:

– JNCIE-ENT Certification Self-Study Bundle

The JNCIE-ENT Certification Self-Study Bundle from Juniper Networks is a comprehensive hands-on resource designed to help you master the skills required for the JNCIE-ENT lab exam. Aligned with the official exam blueprint, this guide covers a range of enterprise networking technologies through expert-level configuration exercises with in-depth explanations. It also includes two full-length practice exams, replicating the real JNCIE-ENT lab environment to enhance your preparation. Tailored for enterprise-level certified engineers aiming for expert certification, this bundle provides structured learning support. Additionally, candidates gain exclusive access to private exam preparation sessions led by industry experts, offering valuable guidance toward earning the JNCIE-ENT certification.

3. Junos OS – Essential for Exam Success

A deep understanding of Junos OS is crucial for success in Juniper Networks certification exams, including the JNCIE-ENT (JPR-944) lab exam. As the network operating system (NOS) powering Juniper’s extensive portfolio of physical and virtual networking and security solutions, Junos OS plays a fundamental role in enterprise and service provider networks.

Designed for reliability, security, and operational efficiency, Junos OS simplifies network design, deployment, and management, reducing the complexity associated with large-scale infrastructures. Its modular architecture allows for seamless software upgrades, minimizing downtime while maintaining network stability and performance—key factors assessed in hands-on certification exams. For exam preparation, candidates must master the core functionalities of Junos OS, including routing, switching, security policies, automation, and high availability mechanisms.

Practical experience with configuration, troubleshooting, and optimization of Junos-based environments is essential to demonstrate expertise in the lab exam. By building proficiency in Junos OS, candidates enhance their ability to efficiently manage enterprise networks and meet the stringent requirements of JNCIE-ENT certification.

4. Understand EX4300 Switches Documentation

A solid understanding of EX4300 switches is essential for JNCIE-ENT (JPR-944) exam preparation, as they play a critical role in enterprise networking and data center environments. These fixed-configuration switches are designed to meet high-performance campus and data center access requirements, making them a fundamental component in real-world networking scenarios tested in the lab exam.

Candidates should be proficient in configuring and managing the EX4300’s key features, including support for IEEE 802.3af PoE and 802.3at PoE+, which provide up to 30W per port to power connected devices. A deep understanding of Juniper’s Virtual Chassis technology is also crucial, as it allows up to 10 EX4300 and EX4600 switches to be interconnected and managed as a single logical unit—a feature often tested in scalability and high availability scenarios.

5. Join Study Groups for Collaborative Learning

Engaging with study groups can significantly enhance your JNCIE-ENT (JPR-944) exam preparation. Collaborating with peers allows you to discuss complex topics, exchange insights, and clarify doubts in a structured learning environment. Study groups also expose you to different problem-solving approaches and real-world networking challenges, helping reinforce your understanding of key exam concepts. Additionally, participating in discussions on online forums and Juniper communities can provide valuable tips from certified professionals and subject-matter experts.

6. Take Practice Tests

Regularly taking practice tests is essential for evaluating your exam readiness and identifying areas that need improvement. These tests simulate the real exam environment, helping you build confidence and improve time management skills. Practicing with full-length lab scenarios enhances your ability to configure, troubleshoot, and optimize Junos-based networks under exam conditions. By reviewing your performance on mock exams, you can refine your approach, strengthen weak areas, and ensure a well-rounded preparation strategy for the JNCIE-ENT certification.