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Quiz

98 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 areas98 Architecture Fundamentals2 Distributed Systems26 Data Architecture23 Cloud Architecture4 Networking3 API & Integration Architecture1 Reliability & Resilience4 Observability3 Performance & Capacity Engineering3 Security Architecture3 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

3 questions in Observability.

  1. Observability intermediate

    You are designing a new service. What must be in place before it goes live so that whoever is paged at 3 AM can diagnose it without you?

    2 min answer observabilityoncallalertinglogging
  2. Observability advanced

    Your observability bill is now 40% of your compute bill. Leadership wants it cut in half without going blind. What do you cut?

    2 min answer observabilitycostcardinalitysampling
  3. Observability advanced

    p99 latency on checkout tripled overnight. Dashboards look normal, no deployment went out, and every service reports healthy. How do you find it?

    3 min answer debuggingtracinglatencydiagnosis