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2948 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 areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

5 questions in Judgement Under Uncertainty.

  1. Judgement Under Uncertainty advanced

    How do you decide when you have enough information to make an architectural decision?

    2 min answer uncertaintyreversibilityspikesoptionality
  2. Judgement Under Uncertainty advanced

    How should an architect make defensible decisions in a domain where the technology changes faster than the decision cycle?

    2 min answer uncertaintyoptionalityevaluationconfiguration
  3. Judgement Under Uncertainty advanced

    Reddit's published account of its 14 March 2023 outage describes 314 minutes of downtime, says it took the team hours to decide that a rollback was the right course of action, and notes the subtle cause was not found until hours after the site had already been restored from a backup. The restore was the fix. Why did deciding to use it cost more than doing it, and which decision taken before the incident would have changed that?

    3 min answer redditincidentdecision-makingrecovery
  4. Judgement Under Uncertainty advanced

    Review this decision record. It chooses a single Postgres primary over sharding for an orders service measured in production at 1200 writes per second, lists three rejected alternatives with reasons, and ends with "Revisit in 12 months". What would you change, what would you leave alone, and what one line makes the decision reviewable?

    3 min answer decision-recordsfalsificationadrreview-trigger
  5. Judgement Under Uncertainty intermediate Multiple choice

    Zoom's daily meeting participants went from roughly 10 million in December 2019 to roughly 300 million by April 2020. No forecast produced that number. Which planning posture best survives a demand shift of that size?

    2 min answer zoomcapacityuncertaintyelasticity