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Quiz

2777 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 areas2777 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering93 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

2777 questions.

  1. Writing Decision Records intermediate

    A team writes architecture decision records that nobody reads. What makes an ADR useful, and what should it deliberately not contain?

    2 min answer linearadrdocumentationrationale
  2. Writing Decision Records intermediate

    A team writes decision records that nobody reads and that do not help when the decision is revisited years later. What is missing?

    2 min answer adrrationaleexpirywriting
  3. Writing Decision Records advanced

    What distinguishes a postmortem that changes the system from one that produces a document, and what makes blamelessness a technical practice rather than a cultural nicety?

    3 min answer googlesrepostmortemblameless
  4. Writing Decision Records intermediate

    What makes an architecture decision record valuable two years later, and which parts do teams consistently omit?

    3 min answer adrdocumentationcontextdecision
  5. Writing Decision Records intermediate Multiple choice

    Which section is missing from most architecture decision records, and why does it matter?

    2 min answer adrrevisit-conditionsdecisionsevolution
  6. Deciding Under Uncertainty advanced

    A decision must be made now and the information needed will not be available for six months. What should the approach be?

    2 min answer postmanuncertaintyoptionsreversibility
  7. Deciding Under Uncertainty advanced

    A sponsor wants a date for a programme with several unknowns. Refusing to estimate is not an option. How do you handle it?

    1 min answer meta-skillsestimationuncertaintycommunication
  8. Deciding Under Uncertainty advanced

    An architectural decision must be made with genuinely insufficient information and the cost of delay is real. How should it be approached?

    2 min answer uncertaintyoptionsexperimentsreversibility
  9. Deciding Under Uncertainty advanced

    An architecture decision must be made when the workload, scale and requirements are genuinely unknown. What approach works?

    2 min answer uncertaintyoptionsreversibilitytriggers
  10. Decommissioning intermediate

    A migration is complete and the old system is still running a year later. Why does decommissioning fail, and what makes it happen?

    2 min answer nykaadecommissioningcostrisk
  11. Decommissioning beginner Multiple choice

    A replaced invoicing system has had no inbound API traffic for 45 days and no user logins for 60. The team is ready to switch it off. One engineer notices that the old system still allocates the sequential invoice numbers the general ledger expects to be gapless. What must happen before shutdown?

    3 min answer decommissioningdependenciesidentifiersshutdown
  12. Decommissioning intermediate

    A replaced system is still running two years after its replacement went live. Why does decommissioning fail, and what makes it happen?

    2 min answer decommissioningunknown-consumersevidenceownership