- What JNCIE-DC Actually Is
- How the Six-Hour Lab Works
- The Six Exam Domains
- Lab Software and Platforms
- The JNCIP-DC Prerequisite
- Fees, Booking, and Remote Proctoring
- Grading, Retakes, and Pass Data
- Three-Year Validity and Renewal
- Who Holds It and Who Hires for It
- Sequencing Your Preparation
- Frequently Asked Questions
- JNCIE-DC is Juniper's expert-level Data Center certification, earned by passing the six-hour hands-on lab, exam JPR-981.
- An active JNCIP-DC must be held through the exam date, or you cannot sit the lab.
- Six objective headings cover Layer 3 Underlay, Overlay, DCI, Security, CoS, and Management, with no published weights.
- The exam fee is $1,600 USD; a failed attempt requires a 14-calendar-day wait before retesting.
What JNCIE-DC Actually Is
JNCIE-DC stands for Juniper Networks Certified Expert, Data Center. It sits at the top of Juniper's Data Center certification track and validates that you can build, configure, and troubleshoot a data center network on a live lab topology, not merely recognize correct answers on a multiple-choice screen. Juniper Networks issues the credential and 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 exam code JPR-981.
The JPR-981 lab launched on July 4, 2022. It is a practical configuration and troubleshooting assessment, which makes it a very different animal from entry-level and associate-level vendor exams. If you are still sorting out terminology, our companion pages on what JNCIE-DC stands for and the meaning of JNCIE-DC cover the naming in more detail, and the broader JNCIE-DC certification overview ties the pieces together.
How the Six-Hour Lab Works
The English-language assessment is a six-hour practical lab combining configuration and troubleshooting. You work on a virtualized topology, build or repair functionality according to the task statements, and verify your own results. There are no recommended preparation courses that are mandatory; training is optional, though many candidates use it.
The official booking window for the lab spans seven hours, but the assessed lab itself lasts six. Treat the extra time as check-in, identity verification, and orientation overhead rather than additional working time.
What "practical" means in terms of question style
Instead of selecting an answer, you receive task requirements that describe the desired network behavior, such as a reachability goal, a policy outcome, or a feature that must function across fabrics. You decide which configuration achieves it. Because tasks interact, a mistake in an early section, such as a sloppy underlay, can silently break overlay tasks that depend on it. That dependency chain is a defining trait of the format and one reason the exam rewards methodical verification at every stage.
Rules of the room
Personal notes are prohibited in the lab. You rely on the platform's built-in documentation and your own command-line fluency. This is why muscle memory for Junos syntax, show commands, and troubleshooting workflows matters so much more than memorized slide content.
The Six Exam Domains
The issuer publishes six high-level exam-objective headings. No percentage weights appear in the current certification page or the official outline, so do not trust any source that claims to know exact domain weightings. The objectives span both Apstra-managed fabrics and controllerless fabrics, so you need to be comfortable in both operating models. For a deeper breakdown, see our complete guide to all six JNCIE-DC content areas.
Domain 1: Layer 3 Underlay
The routed foundation that carries all overlay traffic. Everything above it fails if the underlay is wrong.
- Building a clean IP fabric between leaf and spine devices
- Verifying loopback reachability and routing adjacency state before touching the overlay
- Troubleshooting underlay faults that surface as overlay symptoms
Domain 2: Overlay
The virtualization layer riding on the underlay, where tenant connectivity is defined.
- EVPN-based overlay configuration and verification
- Reading control-plane state to confirm routes are advertised and installed
- Handling both Apstra-managed and controllerless fabric builds
Domain 3: Data Center Interconnect (DCI)
Extending connectivity between data center fabrics. The official outline PDF spells this heading correctly, even though the live page contains a typo ("Date Center").
- Connecting fabrics using Type 2 or Type 5 EVPN routes
- The Apstra-to-controllerless DCI objective, which specifies doing this without Apstra configlets
- Validating inter-fabric reachability end to end
Domain 4: Security
Policy enforcement within and across the fabric.
- Applying and verifying security controls on the available platforms
- Confirming that policy intent matches actual traffic behavior
Domain 5: Class of Service (CoS)
Traffic classification, queuing, and forwarding behavior.
- Configuring and verifying CoS constructs on data center switching platforms
- Interpreting counters and queue statistics to prove behavior
Domain 6: Management
Operating the fabric, including Apstra-driven management concepts.
- Custom configlets, which remain a separate Management objective from the DCI configlet-free requirement
- Day-two operational tasks and platform management
Lab Software and Platforms
The current exam software list, taken from the live certification page, defines the virtual platforms you will touch:
| Platform | Version |
|---|---|
| vQFX | 21.3 |
| vSRX | 20.2 |
| vMX | 20.4 |
| Apstra | 5.1.0 |
| vJunos-switch (vEX) | 23.4R2-S2 |
Note that the older February 2022 outline PDF references Apstra 4.0.2 and omits vJunos-switch. Use the current portal's software list as your authority, and make sure your practice environment matches those versions as closely as possible. Behavioral differences between releases can change command syntax or default behavior, which is exactly the sort of thing that costs minutes in a timed lab.
The mix of platforms is itself informative. You will need to reason across switching, routing, and security devices, plus a controller (Apstra), within one topology. That breadth is a core reason the lab is considered demanding; our JNCIE-DC difficulty guide explores how that plays out.
The JNCIP-DC Prerequisite
You must hold an active JNCIP-DC through the exam date. This is a hard gate, not a recommendation. If your JNCIP-DC lapses before the lab, you cannot test. Plan the timing of your scheduling and any JNCIP-DC renewal together so the two never collide. The full eligibility picture is covered in JNCIE-DC requirements and how to qualify.
Recommended preparation courses are optional. Juniper does not require specific training to sit the lab, but the prerequisite certification does mean every candidate arrives with professional-level data center knowledge already validated.
Fees, Booking, and Remote Proctoring
The official lab booking for October 27, 2026 lists an exam fee of $1,600 USD. Juniper offers both remote proctored appointments and selected in-person appointments. For a full accounting of related expenses, see our JNCIE-DC certification cost breakdown, and for scheduling logistics see JNCIE-DC exam dates and scheduling.
Remote candidate requirements
- A Windows computer
- A working webcam and microphone
- A private room
- A matching, current, government-issued ID
Verify the ID name matches your registration exactly. Identity mismatches are the kind of avoidable problem that can derail an expensive appointment before the clock even starts. Test your camera, microphone, and connection well ahead of exam day.
Optional preparation product
Juniper lists a JNCIE-DC Certification Self-Study Bundle at $600 USD that includes two Super Labs. Its public course outline (copyright 2022) describes an unweighted preparation curriculum. Treat it as a study aid, not a map of the exam: the bundle's chapters do not replace the six official objective headings, do not create additional exam domains, and do not guarantee exhaustive coverage of the current exam. The paid workbook itself was not reviewed for this article.
Grading, Retakes, and Pass Data
Qualified lab proctors grade performance. Results typically arrive through CertMetrics within five business days and normally include a pass/fail outcome, an overall score, and section scores. Those section scores are valuable diagnostic information if you need to retest.
| Policy Item | What the Program Says |
|---|---|
| Grading | Performed by qualified lab proctors |
| Result delivery | CertMetrics, normally within five business days |
| Wait after a failed attempt | 14 calendar days |
| Subsequent attempts | Require manager approval |
| After a pass | Cannot be retaken |
Three-Year Validity and Renewal
The certification remains active for three years. To renew before it expires, you have two paths: pass the current same-track JNCIP-DC exam, or complete an eligible mapped Data Center course in instructor-led or On-Demand format. Renew before expiry rather than after, since waiting until the credential lapses complicates matters.
Because the JNCIP-DC is both your entry prerequisite and one of your renewal routes, keep it in your career planning. Many professionals treat the two certifications as a linked pair rather than separate milestones.
Who Holds It and Who Hires for It
JNCIE-DC is aimed at senior practitioners who design, build, and troubleshoot data center fabrics. Organizations that run Juniper-based data center networks, along with service providers, system integrators, and consultancies that deploy them, are the natural employers. Typical role titles include senior network engineer, data center network architect, and network consulting engineer. Exact openings vary by market, so browse the current JNCIE-DC jobs landscape rather than relying on generalizations.
Compensation depends heavily on region, employer, and experience, and no salary figures are asserted here. For a thorough discussion, read the JNCIE-DC salary guide, and weigh the investment using our worth-it ROI analysis.
Sequencing Your Preparation
Because the lab's tasks depend on each other, the order in which you master domains matters more than the amount of time you spend. Build from the bottom of the stack upward, and keep the interconnect and management topics for when your core fabric skills are automatic.
Layer 3 Underlay
- Build and break IP fabrics repeatedly until diagnosis is fast
- Practice proving reachability before moving on
Overlay
- Build EVPN services on a working underlay
- Practice both Apstra-managed and controllerless builds
Data Center Interconnect
- Connect fabrics with Type 2 or Type 5 EVPN routes
- Rehearse the no-configlet Apstra-to-controllerless scenario
Security, CoS, and Management
- Drill each as a standalone task set, then layer onto the full fabric
- Take full six-hour timed runs with no notes
For a complete roadmap, see the JNCIE-DC study guide, the structured overview in JNCIE-DC training, and the quick-reference JNCIE-DC cheat sheet. If you want to confirm the foundational knowledge your JNCIP-DC prerequisite already assumes, try the practice questions on our main practice test site to find weak spots early.
Key Takeaway
Practice in a lab environment that matches the published software versions, and always run timed, no-notes sessions. The exam punishes slow command recall and unverified assumptions far more than it punishes gaps in theory.
Frequently Asked Questions
JNCIE-DC is Juniper Networks Certified Expert, Data Center, the expert-level credential on Juniper's Data Center track. It is earned by passing the six-hour hands-on lab, exam JPR-981, which tests configuration and troubleshooting across underlay, overlay, interconnect, security, CoS, and management objectives.
Yes. You must hold an active JNCIP-DC through the date of your exam. Recommended preparation courses are optional, but the active prerequisite certification is mandatory.
The official October 27, 2026 lab booking lists $1,600 USD. An optional Self-Study Bundle with two Super Labs is separately listed at $600 USD. See the cost breakdown for planning details.
You must wait 14 calendar days before retesting, and subsequent attempts require a manager's approval. Your CertMetrics report normally includes section scores, which help you target weak domains. A passed lab cannot be retaken.
It remains active for three years. Before it expires, renew by passing the current same-track JNCIP-DC exam or by completing an eligible mapped Data Center course in instructor-led or On-Demand format.