JNCIA-DEVOPS: Juniper Networks Certified Associate - Automation and DevOps (JNCIA-DevOps)

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Official learning paths, exam details, skills measured, and community resources to supplement your study.

About the JNCIA-DEVOPS Exam

Associate-level Juniper automation and DevOps certification (exam JN0-224) - the Junos automation stack and DevOps concepts, NETCONF and the XML API (XML, XPath), data serialization (YAML and JSON), Python and PyEZ (JSNAPy, Jinja2, RPCs, exception handling, device and configuration handling), and the Junos REST API

250 original practice questions for the Juniper Networks Certified Associate - Automation and DevOps (JNCIA-DevOps, exam JN0-224). Covers the Junos automation stack and DevOps concepts (on-box vs off-box automation, Ansible and Salt, PyEZ, automation APIs, CI/CD, version control with Git, infrastructure as code, and zero-touch provisioning), NETCONF and the XML API (XML syntax, XPath navigation, NETCONF datastores and operations over SSH, and the Junos XML request/response model), data serialization (YAML and JSON structure, benefits, and choosing a format), Python and PyEZ (Python concepts, the PyEZ Device and Config utilities, JSNAPy snapshots and checks, Jinja2 templating, RPCs, and PyEZ exception handling), and the Junos REST API (enabling and calling the /rpc endpoint, XML vs JSON responses, the REST API Explorer, and cURL access). Each question is a realistic network-automation scenario with a named engineer, a detailed explanation, and per-option rationale.

Who Should Take This Exam?

The JNCIA-DevOps is designed for network engineers, NetDevOps engineers, and automation-minded operators who are moving from configuring Junos by hand to automating it with Python, PyEZ, Ansible, NETCONF, and the REST API. There is no hard prerequisite; a general networking foundation (and ideally JNCIA-Junos) helps, but the exam tests automation concepts, tool selection, and recognition — not writing production code.

Prerequisites: None (JNCIA-DevOps is the associate entry point of the Juniper Automation and DevOps track)

Typical study time: 4-8 weeks of focused study

Exam Quick Facts

DetailValue
Exam CodeJNCIA-DEVOPS
TitleJuniper Networks Certified Associate - Automation and DevOps (JNCIA-DevOps)
Duration90 minutes
Questions65
Cost$200 USD
ProviderPearson VUE
Validity3 years
PrerequisitesNone (JNCIA-DevOps is the associate entry point of the Juniper Automation and DevOps track)
Question TypesMultiple choice
Official PageView on Juniper →

Exam Domains & Weights

The JNCIA-DEVOPS exam covers 5 domains. Focus your study time based on the weights below — higher-weighted domains have more exam questions.

DomainWeightPractice Qs
Junos Automation Stack and DevOps Concepts22%55
NETCONF/XML API21%52
Data Serialization11%28
Python/PyEZ30%75
REST API16%40
Total100%250

💡 Study tip: Python/PyEZ carries the most weight (30%) — start there. Data Serialization has the least (11%), but don’t skip it — exam questions can come from any domain.

Practice Exam — 250 Questions

Prepare for the JNCIA-DEVOPS with our 250-question practice exam covering all 5 exam domains. Every question includes detailed explanations and maps to official exam objectives.

What you get:

  • ✅ Exam simulation mode with timer
  • ✅ Spaced repetition for weak areas
  • ✅ Detailed explanations for every question
  • ✅ Progress tracking across domains
  • ✅ 20 free questions — no account needed

Juniper Certification Path

Juniper follows: Associate (JNCIA) → Specialist (JNCIS) → Professional (JNCIP) → Expert (JNCIE). Start with JNCIA-Junos.

If you’re studying for the JNCIA-DEVOPS, you might also be interested in these Juniper certifications:

Study Tips

  1. Start with the heaviest domain — focus your time where the exam focuses its questions
  2. Use our practice exam — try the 20 free questions first to gauge your readiness
  3. Review explanations — don’t just check if you got it right; read why each answer is correct
  4. Simulate exam conditions — use the timed exam mode to practice under pressure
  5. Check the official page — official exam details always have the latest objectives

Frequently asked questions

The JNCIA-DevOps questions I get most — usually from network engineers and NetDevOps folks who are moving from typing CLI on the box to automating Junos with Python, PyEZ, NETCONF, and REST, and want to know what the associate automation exam actually tests.

What does JNCIA-DevOps actually cover? #

The current JNCIA-DevOps (JN0-224) is Juniper’s foundational automation and DevOps exam. Five areas: the Junos automation stack and DevOps concepts (on-box vs off-box automation, Ansible and Salt, PyEZ, CI/CD, Git, and infrastructure as code); NETCONF and the XML API (XML, XPath, NETCONF datastores and operations over SSH, and the Junos XML request/response model); data serialization (YAML and JSON — structure, benefits, and when to use each); Python and PyEZ (Python basics, the PyEZ Device and Config utilities, JSNAPy state snapshots, Jinja2 templating, RPCs, and exception handling); and the Junos REST API (enabling and calling the /rpc endpoint, XML vs JSON, the REST API Explorer, and cURL). It tests concepts and recognition, not deep coding.

Is JNCIA-DevOps a coding exam, or a concepts exam? #

It is a concepts-and-recognition exam, not a code-writing exam. You will not be asked to write or debug a full Python script. Instead you identify the right tool, protocol, or data format for a task: which library connects to Junos (PyEZ), what a given NETCONF operation or datastore does, when to use YAML versus JSON, which PyEZ exception a failure raises, or how the REST API Explorer and cURL reach the /rpc endpoint. If you can read a short snippet and reason about what it does, you are in the right headspace — deep scripting and product internals sit beyond this associate tier.

What is the exam format, and how hard is it? #

It is an associate-level exam: 65 multiple-choice questions in 90 minutes at Pearson VUE, no lab, and no hard prerequisite. It suits people with roughly 6 to 12 months of general networking exposure who are starting to automate. The current objectives are anchored to Junos OS 24.2, Python 3.8.10, and PyEZ 2.6.3. Expect scenario questions — an automation engineer choosing an approach for a constraint — rather than memorization trivia. Plan on roughly 4 to 8 weeks of part-time study.

How much does JNCIA-DevOps cost, and how long is it valid? #

USD $200 via Pearson VUE. Juniper often runs free or discounted voucher promotions through the Juniper Open Learning portal — create a free account, take the free on-demand automation courses, and watch for promo emails. The certification is valid for 3 years and is renewed by passing the current version again or by moving up the Juniper certification ladder.

Does Juniper publish domain weights, and who is this exam for? #

Juniper lists the five objective areas but does not publish official percentage weights for JN0-224, so the weights in this guide are study guidance based on objective breadth — every area can appear on the exam. Python/PyEZ is the widest area, so it is weighted heaviest here. It sits at the Associate level of the Juniper ladder and pairs naturally with JNCIA-Junos for the platform foundation. It is a strong fit for network engineers, NetDevOps engineers, and anyone automating Junos with Ansible, Python, or the REST API.

Frequently Asked Questions

1. What does JNCIA-DevOps actually cover?

The current JNCIA-DevOps (JN0-224) is Juniper's foundational automation and DevOps exam. Five areas: the Junos automation stack and DevOps concepts (on-box vs off-box automation, Ansible and Salt, PyEZ, CI/CD, Git, and infrastructure as code); NETCONF and the XML API (XML, XPath, NETCONF datastores and operations over SSH, and the Junos XML request/response model); data serialization (YAML and JSON — structure, benefits, and when to use each); Python and PyEZ (Python basics, the PyEZ Device and Config utilities, JSNAPy state snapshots, Jinja2 templating, RPCs, and exception handling); and the Junos REST API (enabling and calling the /rpc endpoint, XML vs JSON, the REST API Explorer, and cURL). It tests concepts and recognition, not deep coding.

2. Is JNCIA-DevOps a coding exam, or a concepts exam?

It is a concepts-and-recognition exam, not a code-writing exam. You will not be asked to write or debug a full Python script. Instead you identify the right tool, protocol, or data format for a task: which library connects to Junos (PyEZ), what a given NETCONF operation or datastore does, when to use YAML versus JSON, which PyEZ exception a failure raises, or how the REST API Explorer and cURL reach the /rpc endpoint. If you can read a short snippet and reason about what it does, you are in the right headspace — deep scripting and product internals sit beyond this associate tier.

3. What is the exam format, and how hard is it?

It is an associate-level exam: 65 multiple-choice questions in 90 minutes at Pearson VUE, no lab, and no hard prerequisite. It suits people with roughly 6 to 12 months of general networking exposure who are starting to automate. The current objectives are anchored to Junos OS 24.2, Python 3.8.10, and PyEZ 2.6.3. Expect scenario questions — an automation engineer choosing an approach for a constraint — rather than memorization trivia. Plan on roughly 4 to 8 weeks of part-time study.

4. How much does JNCIA-DevOps cost, and how long is it valid?

USD $200 via Pearson VUE. Juniper often runs free or discounted voucher promotions through the [Juniper Open Learning portal](https://learning.juniper.net/) — create a free account, take the free on-demand automation courses, and watch for promo emails. The certification is valid for 3 years and is renewed by passing the current version again or by moving up the Juniper certification ladder.

5. Does Juniper publish domain weights, and who is this exam for?

Juniper lists the five objective areas but does not publish official percentage weights for JN0-224, so the weights in this guide are study guidance based on objective breadth — every area can appear on the exam. Python/PyEZ is the widest area, so it is weighted heaviest here. It sits at the Associate level of the Juniper ladder and pairs naturally with JNCIA-Junos for the platform foundation. It is a strong fit for network engineers, NetDevOps engineers, and anyone automating Junos with Ansible, Python, or the REST API.

20 Free Questions Practice Exam $9 →