Welcome to the Ultimate DevOps & Cloud Interview Guide. This repository contains a curated collection of 12 Comprehensive Interview Guides designed to help you crack Senior DevOps, SRE, and Cloud Engineer interviews.
Each guide is structured in a Question & Answer (Q&A) format, featuring Architecture Diagrams, Real-world Scenarios, and Comparison Tables.
This repository is organized into 12 distinct modules, covering the entire DevOps lifecycle.
| Module | Guide Link | Key Topics Covered |
|---|---|---|
| 01. Git | Git Guide | Branching Strategies (GitFlow vs Trunk), Merge vs Rebase, Conflict Resolution. |
| 02. Linux | Linux Guide | System Diagnostics (Load, CPU), Troubleshooting (SSH, Disk Full), Scripting. |
| 03. Networking | Networking Guide | DNS Resolution Flow, OSI Model, TCP vs UDP, Proxy Types. |
| 04. CI/CD | CI/CD Guide | Pipeline Architecture, Jenkins vs GitHub Actions, Deployment Strategies. |
| 05. Terraform | Terraform Guide | IaC Concepts, Workflow (Init/Plan/Apply), State Management, Modules. |
| 06. Docker | Docker Guide | Container vs VM, Multi-Stage Builds, Networking Modes, Optimization. |
| 07. Kubernetes | Kubernetes Guide | Control Plane Architecture, Service Types, Deployments, Troubleshooting. |
| 08. Observability | Observability Guide | Metrics vs Logs vs Traces, Prometheus Architecture, Golden Signals. |
| 09. AWS | AWS Guide | VPC Architecture, EC2 Purchasing, S3 Classes, IAM Roles vs Users. |
| 10. Azure | Azure Guide | Resource Hierarchy, Policy vs RBAC, AKS, VNet Peering. |
| 11. Python | Python Guide | Boto3 Scripts, Log Parsing, Docker SDK, Data Structures. |
| 12. Behavioral | Project Guide | STAR Method, Whiteboard Architecture, Incident Response. |
- Q&A Format: Direct questions asked in real interviews (e.g., "What is the difference between specific Service Types?").
- Mermaid Diagrams: Visualizations for complex topics like:
- Kubernetes Control Plane
- Git Branching Models
- Prometheus Pull Architecture
- AWS VPC Design
- Comparison Tables: Clear "Before vs After" matrices (e.g., Forward Proxy vs Reverse Proxy, Monolith vs Microservices).
- Real-World Answers: Answers focus on production scenarios and troubleshooting workflows, not just textbook definitions.
- Pick a Module: Navigate to the folder of the technology you are preparing for (e.g.,
08-kubernetes). - Read the Guide: Open the
*_interview_guide.mdfile. - Practice: Use the questions to test your knowledge. Try drawing the architecture diagrams on a whiteboard.
- Mock Interviews: Use the Behavioral Guide (
13-project-related) to structure your experience-based answers using the STAR method.
Contributions are welcome! If you have a great interview question or a better explanation:
- Fork the repository.
- Create a feature branch (
git checkout -b feature/NewQuestion). - Commit your changes.
- Push to the branch.
- Open a Pull Request.
Happy Learning & Good Luck! 🚀