100% Money Back Guarantee

Fast2test has an unprecedented 99.6% first time pass rate among our customers. We're so confident of our products that we provide no hassle product exchange.

Go To JN0-421 Questions

  • Three formats are optional
  • 10+ years of excellence
  • 365 Days Free Updates
  • Learn anywhere, anytime
  • 100% Safe shopping experience

JN0-421 PDF Practice Q&A's

  • Printable JN0-421 PDF Format
  • Prepared by Juniper Experts
  • Instant Access to Download JN0-421 PDF
  • Study Anywhere, Anytime
  • 365 Days Free Updates
  • Free JN0-421 PDF Demo Available
  • Download Q&A's Demo
  • Total Questions: 66
  • Updated on: Aug 30, 2026
  • Price: $129.00 $69.98

JN0-421 Desktop Test Engine

  • Installable Software Application
  • Simulates Real JN0-421 Exam Environment
  • Builds JN0-421 Exam Confidence
  • Supports MS Operating System
  • Two Modes For JN0-421 Practice
  • Practice Offline Anytime
  • Software Screenshots
  • Total Questions: 66
  • Updated on: Aug 30, 2026
  • Price: $129.00 $69.98

JN0-421 Online Test Engine

  • Online Tool, Convenient, easy to study.
  • Instant Online Access JN0-421 Dumps
  • Supports All Web Browsers
  • JN0-421 Practice Online Anytime
  • Test History and Performance Review
  • Supports Windows / Mac / Android / iOS, etc.
  • Try Online Engine Demo
  • Total Questions: 66
  • Updated on: Aug 30, 2026
  • Price: $129.00 $69.98

Finding time to prepare for the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) exam is hard when work already fills your week. Fast2test packs 66 focused practice questions for the JN0-421 exam into formats you can study in short bursts, so every spare half hour moves you closer to a pass.

Juniper JN0-421 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Juniper Automation and DevOps, Specialist (JNCIS-DevOps)
Exam Number:JN0-421
Exam Price:$300 USD (may vary by region)
Certificate Validity Period:3 years
Exam Duration:90 minutes
Real Exam Qty:60-65
Exam Format:Multiple response, Multiple choice, Scenario-based questions
Related Certifications:JNCIS-DevOps
JNCIA-DevOps
Available Languages:English
Recommended Training:Juniper Networks Training (Automation & DevOps)
Exam Registration:Juniper Certifications Registration
Pearson VUE Juniper Exams
Sample Questions:Juniper JN0-421 Sample Questions
Exam Way:Online proctored or in-person test center via Pearson VUE
Pre Condition:No formal prerequisite, but Juniper recommends JNCIA-DevOps knowledge before attempting this exam.
Official Syllabus URL:https://www.juniper.net/us/en/training/certification/certification-tracks/automation-and-devops-track.html

Juniper JN0-421 Exam Syllabus Topics:

SectionObjectives
Scripting and Tooling- Ansible automation with Junos devices
- Git and version control basics for automation workflows
- Python for network automation
APIs and Data Formats- REST APIs and Junos REST API
- Data formats (JSON, XML, YAML)
CI/CD and Operational Automation- Testing and validation of automation workflows
- CI/CD pipelines in network automation
Automation Fundamentals- Automation concepts and use cases in networking
- DevOps principles and workflows
Juniper Platforms and Junos Automation- Junos OS automation features
- Commit scripts and event scripts

Everything You Want to Know About the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) (JN0-421) Exam

The JN0-421 exam, officially titled Automation and DevOps, Specialist (JNCIS-DevOps), is the Juniper exam you pass to earn the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) certification, a credential at the Specialist level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as JNCIA-DevOps, JNCIS-DevOps.

The JN0-421 exam includes 60-65 questions and gives you 90 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.

Juniper lists the following prerequisites or eligibility notes for the JN0-421 exam: No formal prerequisite, but Juniper recommends JNCIA-DevOps knowledge before attempting this exam.. Requirements can change over time, so confirm the details on the official exam page at Juniper's official site before you register.

You can register for the JN0-421 exam through the official channels below:

The exam is delivered in the following format: Online proctored or in-person test center via Pearson VUE. Choose a date that leaves you enough time to work through the full 66-question practice set first.

Juniper recommends the following training resources for JN0-421 candidates:

Official courses build the theory, and the 66 practice questions from Fast2test help you turn that theory into exam-ready speed and accuracy.

Yes. Fast2test offers a free PDF demo of the JN0-421 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.

Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding JN0-421 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.

Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.

The JN0-421 exam blueprint is divided into 5 domains, starting with Scripting and Tooling; APIs and Data Formats; Automation Fundamentals. For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.

Juniper Automation and DevOps, Specialist (JNCIS-DevOps) Sample Questions:

Question 1

Click the Exhibit button.
Exhibit:

You need to programmatically extract interface information using PyEZ from your MX Series device. You log in and use the show interfaces terse | display xml rpc command and see the information shown in the exhibit.
What is the correct PyEZ syntax to accomplish this task?

A. dev.rpc.get_interface_information()
B. dev.rpc.get-interface-information()
C. dev.rpc.get-interface-information(terse=True)
D. dev.rpc.get_interface_information(terse=True)


Question 2

You want to push a configuration onto a Junos device without using NETCONF.
Which two will accomplish this task? (Choose two)

A. JET
B. JSNAPy
C. ZTP
D. Ansible


Question 3

You are asked to write an application that interacts directly with the internal APIs belonging to rpd Which statement is true in this scenario?

A. You must write the application using the REST APIs
B. You must write the application using the XML APIs
C. You must write the application using the YANG APIs
D. You must write the application using the JET APIs


Question 4

Which messaging protocol do JET service APIs use to interface with the Junos OS?

A. RabbitMQ
B. NETCONF
C. MQTT
D. gRPC


Question 5

Click the Exhibit button.
Exhibit:

You are using RubyEZ to interact with a Junos device: however, you are not successfully connecting to the device.
Referring to the exhibit, what is the problem?

A. A Junos::Ez::Provider statement is missing before the Netconf::SSH. New statement
B. Netconf::SSH.new statement arguments must be hashes
C. Argument passed to Netconf:: SSH.new statement must be referenced as variables
D. Netconf::SSH.new statement only expects an IP address of the target device


Solutions:

Question 1
Answer: D
Question 2
Answer: A,C
Question 3
Answer: D
Question 4
Answer: C
Question 5
Answer: C

851 Customer ReviewsCustomers Feedback (* Some similar or old comments have been hidden.)

I passed my exam in JN0-421 Argentina as well! Thank you so much for your great support!

Clement

Clement     5 star  

I got free update for one year for JN0-421 study guide, and I have got latest for free for several time. That's great!

Silvester

Silvester     5 star  

I suggest the pdf exam answers by Fast2test for the JN0-421 exam. Helps a lot in passing the exam with guaranteed good marks. I got 90% marks in the first attempt.

Taylor

Taylor     5 star  

Your guys always do great.JN0-421 dump made me pass the exam.

Ann

Ann     4 star  

Thanks so much!
Thanks for your great JN0-421 practice questions.

Denise

Denise     4.5 star  

Excellent pdf exam guide for certified JN0-421 exam. Really similar questions in the actual exam. Suggested to all.

Basil

Basil     4 star  

Wonderful! I have succeed in passing the JN0-421 test with your sample questions.
This update version is latest this time.

Sandra

Sandra     5 star  

You did a good jod, dump is latest and vaild. With your JN0-421 dump, I have passed my exam easily. Good!

Julius

Julius     4.5 star  

Many of the actual questions in the exam where identical to the JN0-421 practice dumps here and it made me feel confident to pass the exam. Thanks!

Malcolm

Malcolm     4 star  

Passed! great dump btw, only 2 questions out of the total not on dump.

Armand

Armand     4.5 star  

Obtained my dream certification Juniper JN0-421 ! It has been really awesome to experience exam preparation with the help of Fast2test excellent study

Gustave

Gustave     5 star  

Valid JN0-421 exam materials, it covers everything you need to kmow for JN0-421 exam. I passed my JN0-421 exam with preparing for it for about a week. You can trust them!

Tyler

Tyler     5 star  

I purchased a PDF for this Juniper JN0-421 dump on webite. Passed 85% .I have passed JN0-421 Yesterday. This Dump is still valid , 90% of questions in this Dumps.

Pamela

Pamela     4 star  

LEAVE A REPLY

Your email address will not be published. Required fields are marked *

Related Exams

Related Posts

Instant Download JN0-421

After Payment, our system will send you the products you purchase in mailbox in a minute after payment. If not received within 2 hours, please contact us.

365 Days Free Updates

Free update is available within 365 days after your purchase. After 365 days, you will get 50% discounts for updating.

Porto

Money Back Guarantee

Full refund if you fail the corresponding exam in 60 days after purchasing. And Free get any another product.

Security & Privacy

We respect customer privacy. We use McAfee's security service to provide you with utmost security for your personal information & peace of mind.

Contact Us

If you have any question please leave me your email address, we will reply and send email to you in 12 hours.

Our Working Time: ( GMT 0:00-15:00 ) From Monday to Saturday

Support: Contact now 

日本語 Deutsch 繁体中文 한국어