DevOps Engineer Mock Interview Prep | Docker, Kubernetes, CI/CD

📌 About DevOps Engineer Interviews

DevOps Engineer interviews test infrastructure knowledge, automation skills, and cloud expertise. You'll be asked about Linux administration, containerisation (Docker/K8s), CI/CD pipelines, and cloud platforms (AWS/Azure/GCP). Scripting in Bash or Python is expected.

🔄 Interview Rounds

🐧

Linux & Scripting

Linux commands, file permissions, process management, cron jobs. Bash/Python scripting questions.

🐳

Docker & Kubernetes

Container concepts, Dockerfile, docker-compose, K8s pods, deployments, services, and ingress.

🔄

CI/CD Pipelines

Jenkins, GitHub Actions, or GitLab CI. Pipeline design, stages, triggers, and deployment strategies.

☁️

Cloud & Infrastructure

AWS (EC2, S3, RDS, Lambda, VPC) or Azure/GCP equivalents. IaC with Terraform or CloudFormation.

📚 Key Topics to Prepare

Linux Administration

Bash & Python Scripting

Docker & Container Concepts

Kubernetes (K8s) Orchestration

CI/CD (Jenkins, GitHub Actions)

AWS / Azure / GCP

Terraform / Infrastructure as Code

Monitoring (Prometheus, Grafana)

💡 Expert Tips

1
Set up a home lab with Docker + Kubernetes (Minikube) to get hands-on experience.
2
Know the difference between Docker and VM — it's asked in almost every interview.
3
Practice writing Dockerfiles and docker-compose files for a web app + DB.
4
Learn the 12-factor app methodology — it's the foundation of modern DevOps thinking.

❓ Frequently Asked Questions

Do I need to know coding for DevOps? ▼

Yes — Bash scripting is essential, Python is a big plus. You don't need DSA but automation scripting is must.

Which cloud is most in-demand for DevOps? ▼

AWS is most in-demand globally. Azure is preferred in enterprise (Microsoft-heavy) companies.

What is DevOps salary in India? ▼

Entry-level: ₹5–10 LPA. Mid-level (2–4 years): ₹15–30 LPA. Senior DevOps/SRE: ₹30–60 LPA.

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🔗 Also Practice

DevOps Engineer Interview Preparation

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