You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
JUNIPER NETWORKSJuniper Networks Certified Associate, Automation and DevOps
The Juniper Networks Certified Associate, Automation and DevOps (JNCIA-DevOps) certification validates your understanding of DevOps and automation concepts as they apply to Juniper devices and solutions. Designed for networking professionals with introductory-level knowledge of automation tools and best practices, this credential demonstrates your competency in common scripting languages and tools for automating device and network functions. It is the first step in the Automation and DevOps track, setting the foundation for the Specialist-level JNCIS-DevOps certification.
Exam formatMultiple-choice questions
Duration90 minutes
DeliveryPearson VUE
Free questions424
Content last reviewed 30 July 2026 · Up to date
The certification
What JN0-224 proves, and what it asks of you
What this certification covers, who it is written for, and what the exam itself looks like on the day.
5domains
19objectives
132concepts
What it is
What this certification is
What it validates, who it is written for, and the experience it assumes.
About this certification
The Juniper Networks Certified Associate, Automation and DevOps (JNCIA-DevOps) certification is an associate-level credential that validates your understanding of DevOps and automation concepts as they pertain to Juniper devices and solutions. It is the first of two certifications in the Automation and DevOps track, designed for networking professionals with introductory-level knowledge of automation tools and best practices. This track enables you to demonstrate competency in common scripting languages and tools for automating device and network functions.
Earning the JNCIA-DevOps certification proves your ability to work with Junos automation stack, NETCONF/XML API, data serialization formats like YAML and JSON, Python/PyEZ, and the Junos REST API. The exam covers the skills needed to automate Junos devices and networks, making you a valuable asset in modern network operations environments that increasingly rely on automation and DevOps practices.
Who it’s for
This certification is for networking professionals who have introductory-level knowledge of automation tools and best practices and want to demonstrate their competency in automating Juniper devices and networks. It is ideal for those starting their journey in network automation and DevOps, including network engineers, automation engineers, and DevOps practitioners who work with Juniper solutions. Candidates should be comfortable with basic networking concepts and have some exposure to scripting languages and automation frameworks. The certification validates your ability to use tools like Python, PyEZ, NETCONF, and REST APIs to automate Junos OS devices, making it a strong foundation for further specialization in the Automation and DevOps track.
Recommended experience
Introductory-level knowledge of automation tools and best practices, along with a basic understanding of networking concepts. Familiarity with common scripting languages such as Python; Basic understanding of automation frameworks and APIs; Knowledge of DevOps culture, practices, and tools; Experience with Junos OS fundamentals is helpful but not required
The syllabus
What you’ll learn
Every domain and objective Juniper Networks measures, with the weight they carry on the exam.
The official Juniper Networks exam outline · checked 30 July 2026 · See the source
Junos Automation Stack and DevOps Concepts
- Automation Tools
- Automation Frameworks
- Automation APIs
- DevOps Culture, Practices, and Tools
NETCONF and XML API
- XML Concepts and Syntax
- XPath Concepts and Syntax
- NETCONF Concepts
- XML API Concepts and Syntax
Data Serialization
- YAML
- JavaScript Object Notation (JSON)
Python and PyEZ
- Python Syntax and Concepts
- Junos Snapshot Administrator (JSNAPy)
- Jinja2
- Remote Procedure Calls (RPCs)
- PyEZ Exception Handling
- Device Status and Configuration Handling
REST API
- Junos REST API
- Junos REST API Explorer
- cURL Access for the REST API
On the day
The exam itself
Everything Juniper Networks publishes about sitting it, and nothing we inferred.
Prerequisites
No mandatory prerequisites — this certification has no required predecessor exam or credential.
Exam codeJN0-224
CertificationJuniper Networks Certified Associate, Automation and DevOps
Exam formatMultiple-choice questions
Duration90 minutes
Questions65 questions
DeliveryPearson VUE
LanguagesEnglish
Certification levelAssociate
After you pass
Where this credential goes next
The path Juniper Networks lays out, how the credential is kept, and where to book.
Step-by-step path to Juniper Networks Certified Associate, Automation and DevOps
Credential earnedJuniper Networks Certified Associate, Automation and DevOps Associate level certification Renewal and maintenance
Juniper certifications are valid for three years. For more information, see the Recertification page. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirements Lifecycle status
This certification is currently active and available. Juniper Networks maintains this certification to validate current skills and industry relevance.
Exam status: ActiveMaintained by Juniper Networks
Exam registration
Register for the exam through Pearson VUE, Juniper Networks’s authorized testing partner.
Schedule your examVisit the official Juniper Networks certification page for exam policies and requirements.
View the official pageYour coach
And when you are serious, your coach Pip takes over
Your coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksBefore you book
Questions people ask
Is the JNCIA-DevOps certification a prerequisite for the JNCIS-DevOps?
Yes, the JNCIA-DevOps is the first of two certifications in the Automation and DevOps track. The next level is JNCIS-DevOps: Automation and DevOps, Specialist.
What software versions are covered on the JN0-224 exam?
The exam covers Junos 24.2, Python 3.8.10, and PyEZ 2.6.3.
How soon will I receive my exam results?
Pass/fail status is available immediately after taking the exam.
Can I take the JN0-224 exam online or only at a test center?
Juniper exams are delivered by Pearson VUE and can be taken online or at test centers worldwide.
What job roles does the JNCIA-DevOps certification map to?
The certification is designed for networking professionals with introductory-level knowledge of automation tools and best practices, such as network engineers, automation engineers, and DevOps practitioners working with Juniper solutions.
Are there any recommended training courses for the JN0-224 exam?
Juniper recommends the 'Introduction to Junos Platform Automation and DevOps' training course, but it is not required.
Information freshness · Content last reviewed on 2026-07-30 Up to date
Practice free questions 424 questions, free, no account needed.
The curriculum
The whole exam, mapped and written
Every domain, every objective, and every concept Juniper Networks measures — each one written out.
5domains
19objectives
132concepts
93free pages
The domains, and what sits inside them
Every objective below is a page you can open and practise now, without an account.
The official Juniper Networks exam outline · checked 30 July 2026 · See the source
1Junos Automation Stack and DevOps Concepts113 questions
2NETCONF and XML API84 questions
3Data Serialization37 questions
4Python and PyEZ117 questions
Python Syntax and Concepts10 concepts · 5 pagesOpen →Junos Snapshot Administrator (JSNAPy)8 concepts · 6 pagesOpen →Jinja26 concepts · 4 pagesOpen →Remote Procedure Calls (RPCs)7 concepts · 5 pagesOpen →PyEZ Exception Handling6 concepts · 3 pagesOpen →Device Status and Configuration Handling7 concepts · 3 pagesOpen →
Not a table of contents
Every line on this map already opens
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
Automation Tools6 pagesOpen →
Free in front of it
29 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
Reading the map is not the same as knowing the ground
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
Free questions
424 questions. No account, no card.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
424questions
93pages
19objectives
Freealways
Browse by domain
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
1Junos Automation Stack and DevOps Concepts113 questions
2NETCONF and XML API84 questions
3Data Serialization37 questions
4Python and PyEZ117 questions
What a practice page gives you
1Five to a page
Short enough to finish, long enough to matter.
2Every answer explained
Not only which one is right — why the others are wrong.
3A discussion on each
Ask, answer, and vote. Every question has its own thread.
A question, and the idea behind it
Every question comes from a concept
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.
The visual book
See it once. Carry it into the exam.
The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.
132concepts
424free questions
Why a picture, and not another paragraph
Three reasons, and each one is a real finding rather than a slogan.
You can see it againThe whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · MayerThe look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioWhat one page is made of
You are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.
1A numbered strip on top
The idea as a sequence, followed with a finger before a word is read.
2Panels for the parts
What it is, how the machine learns it, when it is the right tool.
3The trap, framed
The distinction the exam tests, given its own box instead of buried in prose.
4One line at the bottom
The sentence to carry into the exam room.
Open book, on purpose
Answer it with the picture beside you
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
It teaches · it does not count
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?
AImage classification
BFacial recognition
COptical character recognition
DObject detection
Look at the five steps. Detect finds a face, align straightens it, encode turns it into numbers, search compares it with a stored face, and decide answers one question: is this the same person? Classification would only say “a face”. Detection would only draw a box. Neither decides whose.
Then the page shuts, and it starts counting
The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Official resources
Straight from Juniper Networks
Where the exam is defined, scheduled and scored.
1official link
132concepts mapped
The source
Juniper Networks’s own pages
We link to them rather than repeat them, so nothing here goes stale behind them.
Checked against the source
Every objective on the official Juniper Networks outline already has questions here
We build from the official skills outline, not from a summary of it — 19 objectives, 132 concepts written under them, and free questions against every one. When Juniper Networks changes the outline, this page changes with it.
19objectives on the outline→132concepts written→424free questions
An official page tells you what will be asked. It cannot tell you what you will get right.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.