PDF Version DemoThe Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) exam has a reputation for breadth, and many candidates underestimate how much ground it covers. Getcertkey closes those gaps with 65 practice questions that reflect the style and difficulty you can expect in 2026.
Juniper JN0-1300 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) |
| Exam Number: | JN0-1300 |
| Exam Price: | USD 200 (approx.) |
| Exam Format: | Multiple Choice |
| Available Languages: | English |
| Passing Score: | Not publicly disclosed |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 65 |
| Related Certifications: | Juniper Networks Certified Design Associate (JNCDA) Juniper Networks Certified Design Professional, Data Center (JNCDS-DC Professional) |
| Sample Questions: |  |
| Exam Way: | Delivered at Pearson VUE testing centers worldwide; results available immediately after exam. |
| Pre Condition: | Juniper Networks Certified Design Associate (JNCDA) certification is required. |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/design/jncds-dc.html |
Juniper JN0-1300 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: IP Fabric Architecture | - Underlay and overlay networks
|
| Topic 2: Data Center Design Considerations | - Physical planning
|
| Topic 3: Data Center Interconnect | - Interconnection technologies
|
| Topic 4: Data Center Security | - Security design principles
|
| Topic 5: High Availability in Data Center | - High availability design
|
| Topic 6: Traffic Prioritization | - Traffic prioritization mechanisms
|
| Topic 7: Virtualization in Data Center | - Virtualization topics
|
JN0-1300 Exam FAQs for 2026 Candidates
Which certification does the JN0-1300 exam lead to?
The JN0-1300 exam is the official Juniper Networks exam behind the JNCDS-DC certification, validating the skills measured by the Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) credential. It sits at the Specialist level of the Juniper Networks certification program. It also connects to Juniper Networks Certified Design Associate (JNCDA), Juniper Networks Certified Design Professional, Data Center (JNCDS-DC Professional), so the knowledge you build here carries over to those tracks as well.
How many questions are on the JN0-1300 exam, and how much time do I get?
The JN0-1300 exam contains 65 questions to be completed within 90 minutes. Before exam day, divide the available time by the question count to work out a comfortable per-question pace, and mark any item that eats into it so you can return later instead of getting stuck. Timed sessions in the Getcertkey test engines make that pacing automatic — run at least two full-length mock exams under the clock so time pressure never becomes the reason you drop points.
What score do I need to pass the JN0-1300 exam, and what does it cost?
The passing score for the JN0-1300 exam is Not publicly disclosed, and the official registration fee is USD 200 (approx.). Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 65 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.
Are there any prerequisites for the JN0-1300 exam?
Juniper Networks Certified Design Associate (JNCDA) certification is required. Requirements can change when Juniper Networks revises its certification program, so confirm the current eligibility rules on the official exam page before you register.
Can I try the JN0-1300 practice questions before I buy?
Yes. Getcertkey provides a free JN0-1300 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if Juniper revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.
What if I fail the JN0-1300 exam, and how is my order delivered?
Every Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.
Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.
What topics are covered in the JN0-1300 exam?
The Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) exam blueprint is organized into 7 domains. The first three are:
- Data Center Security
- IP Fabric Architecture
- High Availability in Data Center
For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.
Juniper Networks Certified Design Specialist, Data Center (JNCDS-DC) Sample Questions:
Question 1
Click the Exhibit button.
A virtual machine was moved from a customer's New York data center to their Los Angeles data center. The virtual machine will continue to send inter-VLAN packets to the New York data center default gateway until the ARP timer expires. The customer wants to optimize routing to the shortest time possible.
Which solution will meet the requirement?
A. standard IP routing with proxy ARP
B. VPLS with MAC movement automation
C. EVPN with Virtual Machine Traffic Optimization
D. VXLAN witha VMware NSX distributed router
Question 2
Your customer has expressed interest in the Junos Fusion solution.
Which two devices should be used in the design proposal as satellite devices for this solution? (Choose two.)
A. EX4550
B. QFX5100
C. EX4300
D. QFX10002
Question 3
You are designing an SDN-based network with a QFX5100. The infrastructure requires a VTEP between the VXLAN overlay network and the underlay VLANs.
In this scenario, what are two requirements that would allow the VTEP to function properly? (Choose two.)
A. policy-based SDN
B. EVPN
C. SDN controller
D. PIM routing
Question 4
You are asked to recommend a stateful firewall solution for east-west traffic that will provide the best cost-to-performance ratio in your data center over a three year period. The devices that you recommend must be able to forward up to 4 Gbps of traffic.
In this scenario, which device would you recommend?
A. SRX240
B. vSRX
C. vMX
D. SRX550
Question 5
Which statement is true about the upgrade process of a Junos Fusion system?
A. Junos OS on the satellite devices is automatically upgraded as part of the process.
B. The Junos OS version will only be upgraded on the aggregation devices.
C. The Junos OS version will match on all devices of the Junos Fusion system.
D. The Junos OS on the aggregation and satellite devices must be upgraded individually.
Solutions:
| Question 1 Answer: C | Question 2 Answer: B,C | Question 3 Answer: C,D | Question 4 Answer: D | Question 5 Answer: A |
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