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Real-World Failure Modes

Understanding how systems fail in production is critical for designing resilient systems and for answering interview questions about reliability and incident response.

Why Study Failure Modes?

  • Design better systems: If you know how things break, you can design for resilience
  • Interview differentiator: Discussing real failure scenarios shows production experience
  • Incident response: Knowing common failure patterns helps you diagnose issues faster
  • Prevention: Most failures are preventable if you know what to look for

Files

FileDescription
common-failures.md19 real-world failure modes with detection, prevention, and recovery
interview-questions.mdFailure mode interview questions with model answers

How to Use

  1. Learn the patterns: Each failure mode has a predictable signature — learn to recognize it
  2. Build mental models: Understand the chain of events that leads to each failure
  3. Prepare stories: Have at least 3-4 failure scenarios you can discuss in interviews
  4. Design defensively: Apply prevention strategies to your system designs