- Exam Code: JN0-281
- Exam Name: Data Center, Associate (JNCIA-DC)
- Updated: Sep 05, 2026
- Q & A: 197 Questions and Answers
From a free demo to 365 days of free updates, Actual4Dumps covers every stage of your JN0-281 preparation in one place. Study the 197 practice questions for the Juniper Data Center, Associate (JNCIA-DC) and book your exam date with confidence.
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Data Center, Associate (JNCIA-DC) |
| Exam Number: | JN0-281 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 65 |
| Exam Format: | Multiple Choice |
| Passing Score: | Not publicly disclosed (variable) |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Related Certifications: | JNCIA-DC |
| Exam Price: | $200 USD |
| Sample Questions: | ![]() |
| Exam Way: | Online (Pearson VUE) |
| Pre Condition: | No prerequisite certification required |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/data-center/jncia-dc.html |
| Section | Objectives |
|---|---|
| Data Center Architectures | - Layer 2 and Layer 3 strategies - Traditional architectures (multitier) - Ethernet VPN–Virtual Extensible LAN (EVPN-VXLAN) basics/purpose - Overlay network vs. underlay network - IP fabric architectures (spine/leaf) |
| Border Gateway Protocol (BGP) | - Configure, monitor, or troubleshoot BGP - BGP concepts, operations, and functionality
|
| Layer 2 Switching and VLANs | - VLANs concepts, benefits, and functionalities
|
| Open Shortest Path First (OSPF) | - OSPF concepts, operations, and functionality
|
| Junos OS Fundamentals | - Monitoring and operational commands - Configuration modes and syntax - Junos OS architecture and routing architecture |
| High Availability (HA) | - Configure, monitor, or troubleshoot HA features - HA concepts, operations, and functionality
|
| Protocol-Independent Routing | - Protocol-independent routing components
|
The Juniper Data Center, Associate (JNCIA-DC) is the official Juniper exam that leads to the JNCIA-DC certification at the Associate level. Passing it validates your skills against Juniper standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as JNCIA-DC, so it can serve as a solid step in a broader certification path.
The JN0-281 exam has 65 questions in total and must be completed within 90 minutes. That leaves only a narrow time budget per item, so train yourself to flag a difficult question, move on, and circle back later instead of getting stuck. A week or two before your test date, run at least one full timed mock exam in the Actual4Dumps desktop or online test engine under the same 90 minutes limit, and repeat until you can finish with a few minutes left for review.
The passing score for the JN0-281 exam is Not publicly disclosed (variable), and the official registration fee is $200 USD. Keep in mind that a failed attempt is not discounted — retaking the exam means paying the full fee again — so it is wise not to book your seat until your practice scores sit comfortably above the passing mark. Working through the 197 questions at Actual4Dumps in timed mode is a reliable way to judge when you are truly ready.
Juniper sets the following requirement for the JN0-281 exam: No prerequisite certification required. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at https://www.juniper.net/us/en/training/certification/tracks/data-center/jncia-dc.html before you register.
Yes. Actual4Dumps offers a free PDF demo for the Juniper Data Center, Associate (JNCIA-DC), so you can review real sample questions and judge the quality before paying anything. After your purchase, you receive 365 days of free updates — whenever the question pool changes, you get the latest version at no cost. Once that period expires, you can extend your update service at a 50% discount from your member zone.
If you take the JN0-281 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee. To qualify, submit a scanned copy of your exam enrollment slip together with your official Score Report (PDF) within 2 days after the exam date, and your claim will be processed within 7 days. Note that the guarantee applies only to the corresponding exam: attempts taken within 3 days of purchase, downloaded-but-unused materials, free resources, and expired orders are not eligible, and the candidate name must match the purchaser name. If you would rather not refund, you can exchange the product for two free exam products of equal value while keeping the update service on your original purchase.
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The Juniper Data Center, Associate (JNCIA-DC) is organized into 7 domains. Among the first ones are Layer 2 Switching and VLANs, Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full JN0-281 exam outline above on this page.
Question 1
What is a common issue to check for when troubleshooting a LAG not forming correctly?
A. Mismatched VLAN configurations
B. Excessive broadcast traffic
C. Identical IP addresses on all LAG interfaces
D. Overutilization of CPU resources
Question 2
Referring to the exhibit, what needs to be done to make this a valid IP fabric?
A. Add a connection between the spine nodes
B. Remove the connection between the leaf nodes
C. Add two connections between the spine nodes
D. Remove one of the redundant links between a leaf node and a spine node
Question 3
MACsec provides protection against which two types of threats? (Choose two.)
A. Data decryption
B. Hashing attacks
C. Man-in-the-middle attack
D. Playback attacks
Question 4
What does the "qualified-next-hop" feature do when configuring a static route?
A. It specifies the IP address of the directly connected device.
B. It instructs the device to verify the next-hop is reachable before activating the route.
C. It allows you to specify an independent route preference value for an additional next hop.
D. It instructs the device to looks up a static route's next-hop that is not directly connected.
Question 5
Exhibit:
Referring to the exhibit, what is the route preference of the 172.25.11.254 next hop?
A. 140
B. 5
C. 10
D. 130
Solutions:
| Question 1 Answer: A | Question 2 Answer: B | Question 3 Answer: C,D | Question 4 Answer: C | Question 5 Answer: B |
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