100 SRE Interview Questions & Answers: Mastery Edition

Knowing the idea behind an answer is useful, but it leaves a gap between "I get it" and "I can say it smoothly under pressure at 9am with a stranger watching." This edition closes that gap — every answer is written exactly as you'd speak it, first person, so you can read it out loud, then say it without the page, then compare.

What's included

• All 100 answers written word for word, first person, exactly as you'd say them
• Part 2: the mental models underneath — process states, the 3-way TCP handshake, metrics/logs/traces, SLI/SLO/SLA
• 20 follow-up questions interviewers ask next
• The follow-ups that come after common answers — caching, canary deploys, feature flags, service meshes, backups, spot instances
• A cover-the-answer practice method that compares word choice, not just whether you got the "right idea"

Contents

1. Linux & Systems Fundamentals
2. Networking
3. Kubernetes
4. Terraform & Infrastructure as Code
5. CI/CD
6. Observability & Monitoring
7. Incident Response & On-Call
8. Cloud Platforms (AWS/Azure/GCP)
9. Scripting & Automation
10. System Design & Behavioral
11. How these questions map to seniority level
12. Part 2 — The mental models underneath (process states, the 3-way TCP handshake, metrics/logs/traces, SLI/SLO/SLA)
13. 20 follow-up questions interviewers ask next