1. Mentoring advanced

    How do you develop architectural judgement in an engineer, as opposed to reviewing their designs?

    2 min answer mentoringjudgementscalingquestions
  2. Mentoring intermediate

    How does an architect develop architectural judgement in others rather than just answering their questions?

    2 min answer mentoringjudgementreasoningdelegation
  3. Meta-Skills intermediate

    A strong senior engineer is promoted to architect and struggles. Which skills transfer and which must be learned?

    2 min answer meta-skillstransitioninfluenceambiguity
  4. Meta-Skills advanced

    Walk me through an architectural decision in your current system that you would make differently at ten times the scale. What evidence would tell you that the moment has arrived?

    2 min answer interviewscalereversibilityevidence
  5. Meta-Skills intermediate

    You must choose a data store this week. The product team cannot tell you the expected query patterns or the growth rate. What do you do?

    2 min answer uncertaintyreversibilitydecision-making
  6. Judgement Under Uncertainty advanced

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

    2 min answer uncertaintyreversibilityspikesoptionality
  7. 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
  8. 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
  9. 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
  10. Pattern Recognition advanced

    An experienced architect recognises a familiar pattern and proposes the solution that worked before. What are the risks, and how are they managed?

    2 min answer pattern-recognitionbiascontextevidence
  11. Pattern Recognition advanced

    An interviewer asks which architectural analogy you reach for too often. Assume you genuinely do not know the answer. How would you find it from your own written record, and what would you do with the finding?

    3 min answer pattern-recognitionfalse-analogyself-auditdecision-records
  12. Pattern Recognition advanced

    Discord's Read States service was fast most of the time but showed latency spikes every two minutes. The pattern looked familiar to anyone who has seen a service under load. The cause published in 2020 was Go's garbage collector scanning a large LRU cache. What does this teach about pattern recognition, and which check would have got there faster?

    3 min answer discordgarbage-collectiontail-latencydiagnosis