DevOps and cloud interview questions for freshers
Entry-level DevOps and cloud roles look for solid basics in Linux, networking and Git, plus hands-on practice with Docker, a CI pipeline and a cloud provider, even if it comes from personal projects.
Below are the questions freshers are commonly asked, with what a good answer includes.
What interviewers assess
- Linux commands, file permissions and processes
- Networking basics: IP addresses, DNS, ports and HTTP
- Git, Docker and a simple CI/CD pipeline
- Cloud basics and a project you deployed yourself
Linux and networking questions
How do you check disk space, memory and running processes in Linux?
What a good answer covers: df -h, free -h, top or ps aux. Explain what you look for in each.
What do file permissions like 755 mean?
What a good answer covers: Read, write and execute for the owner, the group and others; 7 = rwx, 5 = r-x. Mention chmod and chown.
What is DNS?
What a good answer covers: It translates domain names into IP addresses; mention A and CNAME records and caching.
What is the difference between TCP and UDP?
What a good answer covers: TCP is connection-based and reliable (web, email); UDP is faster without delivery guarantees (video calls, DNS).
Tools and cloud questions
What is the difference between git merge and git rebase?
What a good answer covers: Merge keeps history with a merge commit; rebase replays commits for a linear history. Say not to rebase shared branches.
What is Docker and why is it useful?
What a good answer covers: It packages an app with its dependencies into an image that runs the same everywhere. Explain image versus container.
Explain the steps of a simple CI/CD pipeline you built or would build.
What a good answer covers: On each push: install, test, build an image, push it and deploy. Name the tool you used, such as GitHub Actions or Jenkins.
What are IaaS, PaaS and SaaS?
What a good answer covers: Who manages what: virtual machines (IaaS), managed platforms (PaaS), complete software (SaaS), with an example of each.
About your projects questions
Tell me about something you deployed yourself.
What a good answer covers: What it was, where you hosted it, how you deployed it and one problem you hit along the way. Even a small project shows initiative.
What would you do if your deployed app stopped responding?
What a good answer covers: Check whether the server is up, look at logs, check recent changes, restart or roll back, then find the root cause.
Which cloud services have you used, and for what?
What a good answer covers: Be specific: for example, an EC2 instance for a web server, S3 for files. Honesty about the depth of your experience matters.
HR and motivation questions
Tell me about yourself.
What a good answer covers: Degree, how you became interested in DevOps or cloud, a hands-on project or certification, and why this company.
Are you comfortable with on-call or shift work?
What a good answer covers: Answer honestly; show that you understand why operations roles sometimes need it.
How do you learn a new tool quickly?
What a good answer covers: Official documentation, a small hands-on project and asking for help when stuck, with an example.
Common mistakes
- Listing certifications with no hands-on project to back them up.
- Not knowing basic Linux commands while applying for cloud roles.
- Explaining Kubernetes from theory without understanding Docker first.
- Giving vague answers about cloud services you've 'used'.
How to prepare
- Deploy one project to a cloud free tier using Docker and a CI pipeline.
- Practise everyday Linux commands on a real machine or virtual machine.
- Revise networking basics: IP, DNS, ports, HTTP and HTTPS.
- Prepare a clear walkthrough of your deployment, including what broke and how you fixed it.
Reading questions only goes so far: the real test is answering them aloud, under follow-up questions. Career Scan builds a mock interview from your own resume and the job, then shows exactly which answers need work.
Frequently asked questions
Can a fresher get a DevOps job?
Yes, often through cloud support, junior DevOps or operations roles. Hands-on projects and strong Linux basics make the difference.
Should I get a cloud certification first?
A foundational certification can help you get shortlisted, but pair it with a deployed project you can explain.
Do I need to know programming for DevOps?
Basic scripting in Bash or Python is expected. You don't need to be a full software developer.