- JNCIE-DC is Juniper's expert-level data center credential, earned through exam JPR-981, a six-hour hands-on lab.
- An active JNCIP-DC must be held through the exam date before you can sit the lab.
- Six objective headings cover Layer 3 Underlay, Overlay, DCI, Security, CoS, and Management; no percentage weights are published.
- The exam fee in the official booking is $1,600 USD; failed attempts require a 14-calendar-day wait.
What a JNCIE-DC Actually Is
JNCIE-DC stands for Juniper Networks Certified Expert, Data Center. It is the top rung of the Juniper data center certification track, sitting above the professional-level JNCIP-DC. Unlike associate- and professional-level credentials that rely on multiple-choice questions, the JNCIE-DC is a practical configuration and troubleshooting lab. You are handed a topology and a set of requirements, and you build, fix, and verify working network behavior against a clock.
The exam code is JPR-981, and it launched on July 4, 2022. Juniper Networks administers the lab. The certification program was renamed the HPE Networking Certification Program on September 15, 2026, but the current certification page still carries the JNCIE-DC name and the JPR-981 code, so that is the label you will see throughout the credential's documentation.
If you are comparing terminology across searches, our related explainers on what JNCIE-DC stands for and the JNCIE-DC meaning cover the naming in more depth. This article focuses on what the credential is, what it tests, and how the mechanics of attempting it work.
How the Six-Hour Lab Works
The English assessment is a six-hour practical lab. There are no answer choices to eliminate and no way to guess your way through. You configure devices, then troubleshoot problems that have been introduced into the environment, and the results are graded against the stated requirements.
Prerequisite: An Active JNCIP-DC
You must hold an active JNCIP-DC through the exam date. If that credential lapses before you sit the lab, you are not eligible to take it. Recommended preparation courses are optional, so no specific training purchase is required, but the JNCIP-DC prerequisite is firm. For a fuller breakdown of eligibility, see our guide to JNCIE-DC requirements.
Configuration Plus Troubleshooting
The exam combines two skills that are easy to underestimate separately and brutal together. Building a design from a specification tests whether you know the feature set. Troubleshooting tests whether you can read a broken network, isolate a fault, and repair it quickly. Candidates frequently find that time pressure, not knowledge of any single feature, is the limiting factor.
The Six Objective Domains
The issuer publishes six high-level exam-objective headings. Importantly, no percentage weights are published in the current certification page or the official outline, so you should not trust any source that claims specific domain percentages. The headings cover both Apstra-managed and controllerless fabrics, which means you need to be comfortable operating a data center both ways.
Domain 1: Layer 3 Underlay
The routed foundation every overlay depends on. A broken underlay makes everything above it misbehave, so this is where many troubleshooting faults hide.
- Building and verifying IP fabric reachability between leaf and spine devices
- Routing protocol behavior and policy that carries loopbacks used by the overlay
- Diagnosing adjacency, reachability, and path problems under time pressure
Domain 2: Overlay
The virtualized layer that delivers tenant connectivity across the fabric, built on EVPN-based designs in both Apstra-managed and controllerless fabrics.
- Constructing and validating EVPN-based tenant networks
- Understanding how Type 2 and Type 5 EVPN route advertisements carry MAC and IP reachability
- Verifying that overlay state matches intended design on every device
Domain 3: Data Center Interconnect (DCI)
Extending connectivity between data center fabrics. One objective specifically covers connecting an Apstra-managed fabric to a controllerless one.
- DCI using Type 2 or Type 5 EVPN routes between an Apstra-managed fabric and a controllerless fabric
- That objective is specified without Apstra configlets, so you cannot lean on custom configuration templates to bridge the gap
- Verifying end-to-end reachability across the interconnect
Domain 4: Security
Protecting the fabric and the traffic it carries, with vSRX appearing in the exam software list.
- Securing data center traffic and network device access
- Applying and validating security policy on the appropriate platforms
- Confirming that protections do not break legitimate connectivity
Domain 5: Class of Service (CoS)
Traffic classification, queuing, and scheduling so that priority traffic behaves predictably under congestion.
- Classifying and marking traffic consistently across the fabric
- Configuring scheduling behavior and verifying it with operational output
- Understanding how CoS interacts with the overlay and underlay
Domain 6: Management
Operating the data center, including Apstra-driven management and custom configuration through configlets, which is a separate objective from the DCI one above.
- Managing fabrics through Apstra
- Using custom configlets where the objective calls for them
- Monitoring and maintaining device and fabric operations
For a deeper domain-by-domain treatment, our complete guide to the six JNCIE-DC content areas expands on each heading.
The Software Stack You Will Configure
The current exam software, per the certification page, is the following:
| Component | Version | Where It Fits |
|---|---|---|
| vQFX | 21.3 | Virtual switching platform for fabric roles |
| vSRX | 20.2 | Virtual security platform |
| vMX | 20.4 | Virtual routing platform |
| Apstra | 5.1.0 | Intent-based fabric management |
| vJunos-switch (vEX) | 23.4R2-S2 | Virtual switching platform |
Be careful with older materials. The official outline PDF (document 9040207-001-EN, February 2022) lists an older Apstra version, 4.0.2, and omits vJunos-switch. The current portal's software list is the authoritative one. Preparing against an outdated Apstra release means you may meet different workflows on exam day.
Booking, Fees, and Exam-Day Rules
The official Lab Exam: Data Center Expert booking lists a fee of $1,600 USD. That booking spans seven hours even though the assessed lab lasts six, so plan your day around the longer window. For a complete financial picture, including preparation costs, see our JNCIE-DC certification cost breakdown.
Delivery Options
Remote proctored appointments and selected in-person appointments are offered. Availability varies, so check the scheduling system for your options and our JNCIE-DC exam dates guide for scheduling considerations.
Remote Candidate Requirements
- A Windows computer
- A webcam and microphone
- A private room
- A matching, current government-issued ID
Personal notes are prohibited during the lab. That means you cannot bring a cheat sheet into the room; everything you need must be in your head or retrievable through whatever documentation the lab environment provides. Lab conditions are governed by the JNCIE Lab Exams section of the Terms and Conditions, which you should read before booking.
Grading, Retakes, and Renewal
How Grading Works
Qualified lab proctors grade performance. CertMetrics normally provides a pass or fail result, an overall score, and section scores within five business days. Section scores are useful if you need to retake, since they point to where you lost ground.
No public lab pass rate or fixed passing threshold was verified in the official sources, so be skeptical of any site that quotes a specific number. Our pages on the JNCIE-DC pass rate and JNCIE-DC passing score explain what is and is not publicly known.
Retake Policy
- A failed attempt requires a 14-calendar-day wait before trying again.
- Subsequent attempts require a manager's approval.
- A passed lab cannot be retaken.
Keeping the Credential Active
The certification remains active for three years. Before it expires, you can renew by passing the current same-track JNCIP-DC exam or by completing an eligible mapped Data Center course in either instructor-led or On-Demand format. Renewing early matters because your credential status also affects what you can attempt next.
Key Takeaway
Treat the 14-calendar-day wait and the manager-approval requirement as part of your planning. If your employer funds attempts, tell your manager before your first try that a second attempt may need their sign-off.
Who Hires for This Credential
JNCIE-DC is relevant wherever Juniper-based data center fabrics are built and operated. That includes service providers, large enterprises running EVPN fabrics, cloud and hosting operators, and the integrators and partners that design and deploy these networks for others. Typical roles include senior network engineer, data center network architect, network automation or fabric engineer, and technical consultant or pre-sales engineer on a Juniper account.
Because the credential proves hands-on ability across underlay, overlay, DCI, security, CoS, and management, it often functions as a differentiator for roles that carry design responsibility or on-call escalation duties. For role patterns, see JNCIE-DC jobs. For earnings context, the JNCIE-DC salary guide covers what to expect, and our ROI analysis weighs the cost against the career upside. This article does not quote salary figures because no verified numbers were available from the certification sources.
Preparation Path and Domain Sequencing
Recommended courses are optional, but structured preparation helps. Juniper lists a JNCIE-DC Certification Self-Study Bundle at $600 USD that includes two Super Labs. Its public course outline describes preparation curriculum without weights, and course chapters do not replace the six exam-objective headings or guarantee exhaustive coverage of the current exam. Treat it as one input, and always anchor your plan to the six objective headings. The paid workbook itself was not reviewed for this article.
Sequencing Domains Across Your Weeks
Order matters because the domains build on one another. A sensible progression follows the dependency chain of the network itself.
Layer 3 Underlay
- Build and break fabric reachability repeatedly
- Practice fast verification so you can spot underlay faults in minutes
Overlay, then DCI
- Build EVPN tenant networks on a verified underlay
- Rehearse the Apstra-to-controllerless interconnect using Type 2 or Type 5 routes, without configlets
Security, CoS, and Management
- Layer security and CoS on top of a working fabric and confirm nothing regresses
- Practice Apstra management tasks and custom configlets as a distinct skill
Timed Full-Lab Runs
- Simulate the six-hour window end to end
- Include deliberate troubleshooting scenarios across all six domains
Practice with a time budget per task, because running out of clock is a common way to fail even with strong technical knowledge. Our JNCIE-DC study guide expands on lab-driven preparation, and the difficulty guide sets honest expectations. For fast last-minute review, the JNCIE-DC cheat sheet condenses the must-know facts, though remember you cannot bring notes into the lab itself.
If you want to pressure-test your conceptual understanding of the technologies behind each domain, our practice test site offers questions that reinforce the underlying knowledge, and you can explore more JNCIE-DC exam prep resources there. Practice questions complement, but do not replace, hands-on lab time.
Frequently Asked Questions
It is the Juniper Networks Certified Expert, Data Center credential, earned by passing exam JPR-981, a six-hour practical configuration and troubleshooting lab. It sits above the JNCIP-DC and proves hands-on expertise across data center fabrics.
Yes. You need an active JNCIP-DC through the exam date. Recommended preparation courses are optional, but the JNCIP-DC prerequisite is required.
The official Lab Exam: Data Center Expert booking lists $1,600 USD. The booking window runs seven hours, although the assessed lab itself lasts six.
You must wait 14 calendar days before retaking, and subsequent attempts require a manager's approval. Your section scores, normally delivered within five business days, show where to focus.
It remains active for three years. You can renew by passing the current same-track JNCIP-DC exam or completing an eligible mapped Data Center course in instructor-led or On-Demand format.