Top 50 DevOps Interview Questions Answers to Ace Your Next Job Interview

Written by Shubham Saini » Updated on: May 07th, 2025

Top 50 DevOps Interview Questions Answers to Crush Your Next Job Interview

In the current competitive tech industry, DevOps experts are highly sought after for their skill to automate development and operations. As a new or seasoned engineer, it is vital to be familiar with popular DevOps interview questions and answers to secure your next job.

At UniNets, we provide online industry-aligned DevOps courses, automation training, and a DevOps full course that gives you hands-on skills and certification assistance. This tutorial offers the best 50 DevOps interview questions answers, from basic principles to advanced practices, and advice on how to learn automation efficiently.

Why Prepare for DevOps Interviews?

DevOps positions generally demand a mix of coding, scripting, system administration, and automation skills. Employers seek candidates who are technically proficient but also familiar with collaborative workflows. Thus, proper preparation in DevOps interview questions with answers is essential.

Being a student of an automation course or a DevOps full course offered by UniNets, these questions will reinforce your studies and boost your confidence.

Basic DevOps Interview Questions Answers

1. What is DevOps?

Answer: DevOps is a collection of practices that combines software development (Dev) and IT operations (Ops) to reduce the development cycle and offer continuous delivery.

2. What are the primary advantages of DevOps?

Answer: Quicker software releases, enhanced collaboration, lower failure rates at deployment, and improved efficiency with automation.

3. What is CI/CD?

Answer: CI (Continuous Integration) is testing code changes automatically, whereas CD (Continuous Delivery or Deployment) deploys validated code to production automatically.

4. What is Infrastructure as Code (IaC)?

Answer: IaC enables managing infrastructure through code and automation tools such as Terraform, making it consistent and repeatable.

5. Name some popular DevOps tools.

Answer: Jenkins, Docker, Kubernetes, Ansible, Git, Terraform, Nagios.

Intermediate DevOps Interview Questions

6. How does DevOps differ from Agile?

Answer: Agile focuses on iterative development; DevOps extends this by promoting collaboration between development and operations for continuous delivery.

7. What is version control and which tools are used?

Answer: Version control systems track changes in code. Git is the most widely used version control tool in DevOps.

8. What is Docker?

Answer: Docker is a containerization platform that packages applications and dependencies together to run consistently across environments.

9. How do Kubernetes and Docker complement each other?

Answer: Docker forms containers, and Kubernetes orchestrates and manages them in clusters for scalability and high availability.

10. What does Jenkins do?

Answer: Jenkins is a CI/CD server for automating build, testing, and deploying code.

Advanced DevOps Interview Questions and Answers

11. What are microservices?

Answer: Microservices is a style of architecture wherein an application is separated into many, loosely linked services that may be developed and released separately.

12. Describe the term "Shift Left" in DevOps.

Answer: Refers to executing testing and quality checks in the development pipeline earlier to find faults early on.

13. What is Canary Deployment?

Answer: It's a deployment mechanism in which the latest version is slowly rolled out to a section of users ahead of full release.

14. How is Ansible different from Puppet?

Answer: They are both tools for configuration management. Ansible is agentless and is based on YAML, whereas Puppet is agent-based and has its own DSL.

15. How do you monitor performance in DevOps?

Answer: System monitoring, alerting, and visualization are done using tools such as Prometheus, Grafana, and Nagios.

DevOps Interview Preparation Tips

Enroll in hands-on automation training to confirm learning.

Practice scenario-based questions on DevOps.

Go through all the commonly used tools.

Take mock interviews, particularly if you're studying UniNets' DevOps courses online.

We provide at UniNets:

Automation certification to demonstrate your skills.

Live projects in our DevOps full course.

Automation instructor-led training with lifetime access to recorded lectures.

Why Select UniNets for DevOps and Automation Training?

Certified Trainers – Get trained by industry professionals with actual experience.

Flexible Online Courses – Take our DevOps courses online at any time, from anywhere.

Hands-On Labs – Practice on real projects and scenarios.

Placement Assistance – Receive career guidance after certification.

Learn Automation – Master the automation tools like Ansible, Jenkins, and Terraform with systematic learning.

Final Thoughts

Preparation for a DevOps interview is more than theory—about tooling, process, and application in real life. The top 50 DevOps interview questions answers above provide a good foundation. If you're looking to ace your next interview or switch to a DevOps job, taking a DevOps full course or automation certification at UniNets can be the game-changer.

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