DevOps Interview Questions
Topic-wise interview prep covering Linux, CI/CD, Kubernetes, cloud, and troubleshooting.
Progress Level
Intermediate (66%)
Estimated Time
Reading time: 8 minutes
Skill Outcome
Scenario debugging
Primary keyword: devops interview questions | Secondary: devops fresher interview, linux git docker interview questions
A. Quick Clarity (2-3 min read)
What is this topic? DevOps Interview Questions
Why important? Topic-wise interview prep covering Linux, CI/CD, Kubernetes, cloud, and troubleshooting.
Where used? Production systems on cloud platforms like Amazon Web Services, with containers and orchestration.
What you will learn? Core concept, practical flow, troubleshooting, and interview-ready understanding.
Cloud example: Amazon Web Services (AWS)
B. Concept Explanation
Core idea: Question Categories.
Analogy: Think of DevOps as a delivery highway where code moves from idea to production with checkpoints.
Architecture flow: User -> Application -> Container -> Kubernetes -> Cloud -> Monitoring
- Scenario debugging
- Architecture trade-offs
- Pipeline and reliability
C. Practical Section
Hands-on commands and examples for real usage.
Command Table
git status
npm test
curl -I http://localhost:3000/health
D. Real DevOps Context
- Used in production delivery pipelines and cloud operations.
- Common platforms: Amazon Web Services, Docker, Kubernetes.
- Common mistake: jumping to advanced tools before concept clarity.
- Industry use: teams use this to improve release speed and reliability.
E. Troubleshooting
CrashLoopBackOff
Why it happens: Container startup failed due to missing env/config dependency.
How to fix: kubectl get pods | kubectl describe pod <pod> | kubectl logs <pod> --previous
502 Bad Gateway
Why it happens: Upstream app process not listening on expected port.
How to fix: sudo nginx -t | ss -lntp | curl -I http://localhost:<port>
High CPU
Why it happens: Hot endpoint and insufficient resource limits.
How to fix: top | ps aux --sort=-%cpu | head | kubectl top pod
F. Mini Practice Task
Try this now: Create a mini project branch, commit a change, and open a pull request with notes.
Glossary Links
Question Categories
- Scenario debugging
- Architecture trade-offs
- Pipeline and reliability
FAQ
How to prepare for DevOps interviews?
Practice scenario-based troubleshooting and explain project decisions with impact.