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Quiz

126 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas126 Architecture Fundamentals2 Distributed Systems26 Data Architecture23 Cloud Architecture19 Networking3 API & Integration Architecture1 Reliability & Resilience4 Observability3 Performance & Capacity Engineering3 Security Architecture16 Cost Architecture & FinOps3 Business Architecture2 Architecture Communication2 Enterprise Architecture1 Legacy Modernization2 AI-Era Architecture3 Software Architecture & Engineering3 Architecture Patterns3 Architecture Decision-Making6 The Architect's Meta-Skills1
Difficulty Any beginner intermediate advanced

2 questions in Bulkheads & Isolation.

  1. Bulkheads & Isolation advanced

    A service calls four dependencies. How do you size its thread pools, and why is the total often smaller than people expect?

    2 min answer bulkheadpoolslittles-lawsizing
  2. Bulkheads & Isolation advanced

    You are asked to make a multi-tenant SaaS resilient to "any single failure". You propose cells. What must you find before that claim is true?

    2 min answer cellsisolationblast-radiusdependencies