Learn AI ↗

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 Leader Election.

  1. Leader Election advanced

    A nightly job occasionally runs twice, producing duplicate charges. The team proposes a distributed lock. What do you say?

    2 min answer leader-electionlockingidempotencyfencing
  2. Leader Election advanced

    Your cluster fails over spuriously under load, but a real leader failure takes 45 seconds to detect. How do you resolve the tension?

    2 min answer leader-electionfailoverdetectiontuning