- Identity and Format at a Glance
- Logistics, Fees, and Retake Rules
- The Lab Software Stack
- The Six Domains: Quick Reference
- Configuration Patterns to Know Cold
- Troubleshooting Triage Order
- Scoring, Results, and What Is Not Published
- Renewal and Career Context
- A Domain-Sequenced Review Plan
- Frequently Asked Questions
- JNCIE-DC (exam JPR-981) is a six-hour practical configuration and troubleshooting lab, not a multiple-choice test.
- An active JNCIP-DC is required through the exam date; the booking listing shows a $1,600 USD fee.
- Six objective headings: Layer 3 Underlay, Overlay, DCI, Security, CoS, and Management. No percentage weights are published.
- Software includes vQFX 21.3, vSRX 20.2, vMX 20.4, Apstra 5.1.0, and vJunos-switch 23.4R2-S2.
Identity and Format at a Glance
JNCIE-DC is the Juniper Networks Certified Expert, Data Center credential, the top rung of the Juniper data center track. It is administered by Juniper Networks, and the certification program was renamed the HPE Networking Certification Program on September 15, 2026, although the current certification page still carries the JNCIE-DC name and exam code JPR-981. If you need background on the name itself, see What Is JNCIE-DC? or What Does JNCIE-DC Stand For?.
The exam launched on July 4, 2022. The English assessment is a six-hour practical lab in which you configure and troubleshoot a data center network on live virtual devices. There are no answer choices to eliminate and no way to guess your way to a pass. Every point comes from a working configuration or a repaired fault, which is why this credential is judged so differently from written exams. For a candid look at that difficulty, read How Hard Is the JNCIE-DC Exam?.
| Item | JNCIE-DC Fact |
|---|---|
| Exam code | JPR-981 |
| Format | Practical configuration and troubleshooting lab |
| Assessed duration | Six hours |
| Launch | July 4, 2022 |
| Prerequisite | Active JNCIP-DC through the exam date |
| Fee (official booking listing) | $1,600 USD |
| Certification validity | Three years |
| Preparation courses | Recommended but optional |
Logistics, Fees, and Retake Rules
Booking and Appointment Mechanics
The official lab booking lists the fee at $1,600 USD. Note a detail that trips up planners: the booking block spans seven hours, but the assessed lab itself lasts six. Treat the extra time as check-in and administrative overhead, not extra working time. Delivery is offered as remote proctored appointments and at selected in-person locations. For scheduling specifics, see JNCIE-DC Exam Dates, and for the full money picture including optional study bundles, see JNCIE-DC Certification Cost.
Remote Proctoring Checklist
- A Windows computer
- A working webcam and microphone
- A private room
- Current government-issued ID that matches your registration
- No personal notes of any kind; they are prohibited during the lab
Retake Policy
If you fail a lab attempt, you must wait 14 calendar days before trying again, and subsequent attempts require a manager's approval. Once you pass, the lab cannot be retaken. The eligibility chain behind all of this is covered in JNCIE-DC Requirements.
The Lab Software Stack
The current exam software, per the live certification page, is:
- vQFX 21.3 for virtual switching
- vSRX 20.2 for virtual security and firewall functions
- vMX 20.4 for virtual routing
- Apstra 5.1.0 for intent-based fabric management
- vJunos-switch (vEX) 23.4R2-S2
The older official outline PDF (document 9040207-001-EN, February 2022) references Apstra 4.0.2 and omits vJunos-switch, so use the current portal list rather than the PDF when deciding what to practice. The PDF is still valuable for one thing: it carries the correct spelling of Data Center Interconnect where the live page contains a typo.
The Six Domains: Quick Reference
The six domain lines are the issuer's high-level exam-objective headings. No percentage weights are published on the current page or in the official outline, so any article claiming exact weights is guessing. The objectives span both Apstra-managed and controllerless fabrics, meaning you must be comfortable building the same outcome two ways. For a deeper walk through each heading, see JNCIE-DC Exam Domains: Complete Guide to All 6 Content Areas.
Domain 1: Layer 3 Underlay
The routed foundation that every overlay depends on.
- IP fabric design with point-to-point links and loopback reachability
- BGP and IGP choices for underlay route exchange, and the policy needed to advertise the right prefixes
- Load balancing and fast failure detection across equal-cost paths
- Verifying that every VTEP loopback is reachable before touching the overlay
Domain 2: Overlay
The virtual network layer built on top of the underlay.
- EVPN-VXLAN control plane and the route types that carry MAC and IP information
- VLAN-to-VNI mapping, route targets, and route distinguishers
- Inter-VNI routing, gateway placement, and multihoming concepts
- Building the overlay in both Apstra-managed and controllerless designs
Domain 3: Data Center Interconnect (DCI)
Extending tenant connectivity between data center sites.
- Stitching or extending EVPN between fabrics
- The Apstra-to-controllerless DCI objective specifically calls for Type 2 or Type 5 EVPN routes without Apstra configlets
- Understanding which route type fits a Layer 2 extension versus a Layer 3 handoff
Domain 4: Security
Protecting the fabric and the workloads it carries.
- Firewall filters and policers on switching and routing platforms
- Security policy and zone concepts on the virtual SRX
- Control plane protection and access restrictions
Domain 5: Class of Service (CoS)
Marking, classifying, queuing, and scheduling traffic.
- Classifiers, rewrite rules, forwarding classes, and schedulers
- Congestion handling behavior for lossless or priority traffic
- Applying CoS consistently across fabric tiers
Domain 6: Management
Operating and automating the environment.
- Apstra operational workflows, including custom configlets, which are a separate Management objective from DCI
- Device management, monitoring, and system services
- Configuration hygiene such as rollback, commit confirmation, and groups
Configuration Patterns to Know Cold
In a six-hour lab, speed comes from not hunting for syntax. These are the patterns worth drilling until they are automatic.
Underlay Habits
- Build the underlay first and prove it with pings between all loopbacks before moving on.
- Confirm BGP sessions are established and that export policy actually advertises loopbacks, not just that sessions are up.
- Check ECMP is in effect where the task expects multiple paths.
Overlay Habits
- Map every VLAN to its VNI and verify the mapping on both ends of each tunnel.
- Match route targets deliberately; a single mismatch produces a silent failure with no obvious error.
- Verify with the EVPN database and MAC tables rather than assuming the control plane worked.
Two Ways, Same Outcome
Because the objectives cover both Apstra-managed and controllerless fabrics, rehearse building a given service both ways. A candidate who only knows the controller workflow will struggle when a task demands hand-built CLI configuration, and the reverse is equally true. For a broader plan that balances both, see JNCIE-DC Study Guide 2026.
Troubleshooting Triage Order
Troubleshooting tasks reward a consistent method. Work from the bottom of the stack upward, because a fault low in the stack masquerades as a fault higher up.
- Physical and interface state: Are links up, and are addresses correct?
- Underlay reachability: Can every loopback reach every other loopback?
- Underlay routing protocol state: Sessions established, routes received, policy applied in the right direction?
- Overlay control plane: Are EVPN routes being originated, advertised, and accepted with matching route targets?
- Overlay data plane: Are VNI mappings and MAC or ARP entries correct?
- Services on top: Security policy, CoS treatment, and management access.
Key Takeaway
Resist jumping straight to the symptom. If a tenant cannot reach a gateway, prove the underlay and the EVPN routes first. Most overlay failures are underlay or route-target mistakes in disguise.
Scoring, Results, and What Is Not Published
Qualified lab proctors grade the performance. Results through CertMetrics normally arrive within five business days and include pass or fail, an overall score, and section scores. Those section scores are useful: if you fail, they show which areas to rebuild before the 14-day wait expires.
What is not publicly verified: a lab pass rate and a fixed passing threshold. Be skeptical of any source quoting a specific percentage as fact. For the careful treatment of what is and is not known, see JNCIE-DC Pass Rate and JNCIE-DC Passing Score.
| Question | Status |
|---|---|
| Published domain weights | None; headings only |
| Public pass rate | Not verified |
| Fixed passing threshold | Not verified |
| Result delivery | CertMetrics, normally within five business days |
| Result contents | Pass/fail, overall score, section scores |
Renewal and Career Context
Staying Current
The certification stays active for three years. To renew before expiry, pass the current same-track JNCIP-DC exam, or complete an eligible mapped Data Center course in instructor-led or On-Demand format. Mark your expiry date early, since renewal must happen before the certification lapses.
Who Values It
Employers that run Juniper-based data center fabrics, service providers and integrators building EVPN-VXLAN networks, and Juniper partners that need credentialed engineers tend to care most about this expert-level, hands-on credential. Roles typically involve data center network engineering, architecture, and escalation work. For market-side detail, see JNCIE-DC Jobs, JNCIE-DC Salary Guide, and the cost-benefit view in Is the JNCIE-DC Certification Worth It?.
Optional Preparation Material
Juniper lists a JNCIE-DC Certification Self-Study Bundle publicly at $600 USD that includes two Super Labs. Its course outline is preparation curriculum, not the exam blueprint: its chapters do not replace the six exam-objective headings or guarantee exhaustive coverage of the current exam. Treat the six domain headings as your authority on scope, and see JNCIE-DC Training for options.
A Domain-Sequenced Review Plan
Sequence your lab practice to match dependencies: the underlay must work before the overlay, and the overlay before DCI. This is the only study-method section in this cheat sheet, and it is built around the exam's own structure.
Layer 3 Underlay
- Build an IP fabric from scratch on vQFX and vMX
- Time yourself bringing up BGP and loopback reachability
Overlay
- Build EVPN-VXLAN controllerless, then rebuild the same service with Apstra 5.1.0
- Practice verifying every route target and VNI mapping
Data Center Interconnect
- Extend tenants between two fabrics using Type 2 or Type 5 routes without configlets
Security, CoS, and Management
- Apply filters, policy, and CoS across the fabric
- Practice configlets and operational workflows
Full Six-Hour Dress Rehearsals
- Run complete timed labs with no notes
- Add deliberate faults and practice the triage order above
Written practice still has a role for terminology and concept recall. You can test your command of the underlying concepts with the practice questions at our main practice test site, then return to the lab bench for hands-on repetition.
Frequently Asked Questions
No. JPR-981 is a six-hour practical lab where you configure and troubleshoot a data center network on virtual devices. Proctors grade your performance rather than a set of selected answers.
Yes. You need an active JNCIP-DC through your exam date. Preparation courses are recommended but optional. See JNCIE-DC Requirements for the full eligibility picture.
The official booking listing shows $1,600 USD. The booking spans seven hours, while the assessed lab itself is six hours. Remote proctored and selected in-person appointments are offered.
You must wait 14 calendar days before another attempt, and subsequent attempts require a manager's approval. Your section scores, normally delivered within five business days, show which domains to strengthen.
Three years. Renew before expiry by passing the current same-track JNCIP-DC exam or completing an eligible mapped Data Center course in instructor-led or On-Demand format. A passed lab itself cannot be retaken.
For a wider orientation on the credential, start with the JNCIE-DC Certification overview, and keep this page handy as a quick-reference companion to the deeper guides above.