Free JN0-420: Automation and DevOps Specialist Exam Questions and Answers
Automation and DevOps Specialist is exam JN0-420, part of the Juniper Networks Certification Program. Juniper's written exams share one format across every track and level: 65 multiple-choice questions in 90 minutes, delivered by Pearson VUE. The JN0- code carries the track in its second digit — 3 is security, 4 enterprise routing and switching, 5 Mist AI, 6 service provider, 8 data centre — and the level in the first, running Associate, Specialist, Professional and Expert.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 12, 2026
- Exam code
- JN0-420
- Provider
- Juniper
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
A network engineer is automating a configuration backup. Which tool could be used?
Please select an optionIncorrectCorrect answer: B
Ansible is an automation tool that can be used to manage configurations, including scheduling backups of network devices.
Was this answer correct?Question #2
During a review, a developer states a script fails to execute correctly. What should be checked first?
Please select an optionIncorrectCorrect answer: D
In Python and many other scripting languages, indentation is critical for code execution. Issues in indentation can lead to script failure.
Was this answer correct?Question #3
A company wants to monitor the network traffic in real-time. Which tool should they choose?
Please select an optionIncorrectCorrect answer: D
Splunk is a powerful tool for analyzing and monitoring real-time data from various sources, including network traffic.
Was this answer correct?Question #4
A DevOps engineer is troubleshooting a CI/CD pipeline. What is the first step?
Please select an optionIncorrectCorrect answer: B
Analyzing logs provides immediate insights into the failure or issues within the CI/CD pipeline and helps to diagnose the problem efficiently.
Was this answer correct?Question #5
Which protocol is primarily used for network automation in Junos?
Please select an optionIncorrectCorrect answer: B
SSH (Secure Shell) is the primary protocol used in Junos for secure access and network automation, allowing scripts to interact with devices securely.
Was this answer correct?Question #6
In a playbook, a certain task fails. What default behavior does Ansible perform?
Please select an optionIncorrectCorrect answer: D
By default, when a task fails in an Ansible playbook, it will skip the remaining tasks unless specified otherwise.
Was this answer correct?Question #7
A team is using Git for version control. What command fetches the latest changes?
Please select an optionIncorrectCorrect answer: D
The git fetch command updates the local repository with changes from the remote repository without merging them.
Was this answer correct?Question #8
During integration testing, a dependency fails to install. What should the team check?
Please select an optionIncorrectCorrect answer: A
Checking version compatibility ensures that all dependencies align with the project requirements and avoid installation errors.
Was this answer correct?Question #9
A Linux script is not executing due to permission issues. What command resolves this?
Please select an optionIncorrectCorrect answer: B
The chmod command is used to change the permissions of a file in Linux, allowing the script to execute as intended.
Was this answer correct?Question #10
When using Docker, what is the purpose of a Dockerfile?
Please select an optionIncorrectCorrect answer: B
A Dockerfile is a script that contains instructions to build a Docker image, which is then used to create containers.
Was this answer correct?
Continue with JN0-420: Automation and DevOps Specialist
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in JN0-420: Automation and DevOps Specialist, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
ChooseSingle exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
ChooseFull access
$39.99/mo
Every exam in the catalogue, month to month.
ChooseFull access
$199.99/yr
Every exam in the catalogue for a year.
Choose
Already subscribed? Sign in to pick up where you left off.
Other Juniper certifications
- JN0-347: Enterprise Routing and Switching, Specialist (JNCIS-ENT) (opens in a new tab)
- JN0-634: Security Professional (JNCIP-SEC) (opens in a new tab)
- JN0-1101: Juniper Networks Certified Design Associate (JNCDA) (opens in a new tab)
- JN0-360: Juniper Networks Certified Internet Specialist SP (JNCIS-SP) (opens in a new tab)
- JN0-104: Junos, Associate (JNCIA-Junos) (opens in a new tab)
- JN0-230: Security, Associate (JNCIA-SEC) (opens in a new tab)
Reviews
★★★★★
This platform is a lifesaver. The practice questions and explanations are so detailed. It’s the best study tool I’ve ever used.
Hannah Smith
USA
★★★★★
I highly recommend Exam Practice. The feedback after each test helped me improve significantly, and I passed my exams easily.
Oscar Nyström
Sweden
★★★★★
Exam Practice is worth every penny. The mock exams are realistic, and the feedback helped me focus on key areas.
Amit Sharma
India
FAQ
Learn More: https://www.juniper.net/us/en/training/certification.html
- Q1: What is the JN0-420: Automation and DevOps Specialist exam?
- A: JN0-420: Automation and DevOps Specialist is a Juniper certification exam. Judging by the questions in our bank, it concentrates on engineer, developer, script, microservices and devops.
- Q2: What topics does the JN0-420: Automation and DevOps Specialist exam cover?
- A: Questions in our JN0-420: Automation and DevOps Specialist bank cluster around engineer, developer, script, microservices, devops, pipeline, automation and container. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for JN0-420: Automation and DevOps Specialist?
- A: Work through the JN0-420: Automation and DevOps Specialist practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real JN0-420: Automation and DevOps Specialist exam questions?
- A: They are drawn from officially released past questions and from community members who have sat JN0-420: Automation and DevOps Specialist. Answers are verified and updated weekly.
- Q5: Where do I register for the JN0-420: Automation and DevOps Specialist exam?
- A: Register through Juniper directly at https://www.juniper.net/us/en/training/certification.html. Exampractice is not affiliated with Juniper and does not administer the exam.
- Q6: Is there a free JN0-420: Automation and DevOps Specialist sample?
- A: Yes. Every JN0-420: Automation and DevOps Specialist page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Juniper Certification Exams?
- A: Juniper Certification Exams validate your expertise in using and managing Juniper Networks’ products and solutions, including routing, switching, security, and automation. These certifications demonstrate your proficiency in deploying, configuring, and troubleshooting Juniper technologies to optimize network performance and security.
- Q8: Why should I pursue Juniper Certification?
- A: Juniper Certification enhances your professional credibility, showcasing your skills and knowledge in networking and security. This can lead to better job opportunities, higher salaries, and career advancement in IT, networking, and cybersecurity roles.
- Q9: What are the benefits of Juniper Certification?
- A: Benefits include recognition as a certified Juniper professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Juniper technologies and best practices.
- Q10: Who should take Juniper Certification Exams?
- A: Network engineers, system administrators, security professionals, and anyone involved in managing and implementing Juniper Networks’ solutions should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Juniper Certification Exams are available?
- A: Juniper offers various certification paths, including:
- Q12: How do I prepare for Juniper Certification Exams?
- A: Preparation can include official Juniper training courses, study guides, practice exams, online tutorials, and hands-on experience with Juniper products and solutions.
- Q13: Where can I take Juniper Certification Exams?
- A: Juniper Certification Exams can be taken at authorized Pearson VUE testing centers worldwide or online, providing flexibility to fit your schedule and location.
- Q14: How do Juniper Certifications impact my career?
- A: Juniper Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in networking, security, and IT infrastructure.
- Q15: Are there any prerequisites for Juniper Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior experience with Juniper products. Check the specific requirements for each certification path on the Juniper Networks Certification Program (JNCP) website.
- Q16: How often do I need to recertify for Juniper Certifications?
- A: Juniper Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest networking technologies and industry practices.