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Quiz

2827 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 areas2827 Architecture Fundamentals91 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-Making101 The Architect's Meta-Skills92 Delivery & Release Engineering103 Platform Engineering & Developer Experience92 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

2827 questions.

  1. Facilitation intermediate

    A design session with twelve participants produces no decisions and everyone leaves frustrated. What should the facilitator have done differently?

    2 min answer facilitationdecision-makingmeetingsstructure
  2. Facilitation advanced

    A nine-person cross-team session reaches a decision at minute 48 of a 50-minute slot and it is recorded the same afternoon. Two days later two attendees have separately told their own teams they disagreed, and by day four one team has stopped work on it. What failed, and which design of the session made it possible?

    3 min answer facilitationdecisionsdissentcommitment
  3. Facilitation advanced

    Two teams disagree strongly about where a service boundary should be. How do you run the session that resolves it?

    2 min answer facilitationdecisionsevidenceconflict
  4. Facilitation beginner

    Two teams meet for 60 minutes to agree who will own a shared notification capability. Everyone is prepared and the discussion is civil, and the meeting ends with "let us take this offline". Why does naming the decision-maker before the session change the outcome mechanically rather than politically?

    2 min answer facilitationdecision-rightsconsensusmeetings
  5. Failover advanced

    A digital bank needs automatic failover for availability, but some operations cannot safely execute twice. Which components fail over automatically, which degrade, and which stop?

    2 min answer jupiterfailoversplit-brainfinancial
  6. Failover advanced Multiple choice

    A load balancer health check is changed from "the process answers" to "the process can reach its database and its cache". The dependency has a brief regional problem. What happens to the fleet, and why do load balancers deliberately fail open?

    3 min answer health checksfail openawscorrelated failure
  7. Failover advanced

    A regional failover completes in 90 seconds per the runbook - the database is promoted and traffic is redirected - but the application stays broken for 25 minutes. The new region's services are healthy and idle. Where is the time going?

    3 min answer failoverdnsconnection poolscaching
  8. Failover advanced

    A search platform's index-serving region becomes degraded but not fully down - elevated latency and partial errors. Should traffic fail over automatically? Analyse the risks either way.

    2 min answer failovergray-failureautomationcapacity
  9. Failover advanced

    The business asks for multi-region active-active. Walk through the decision and what it actually requires.

    2 min answer multi-regionfailoverconsistencycost
  10. Failover advanced

    Your database primary is unreachable from the monitoring system but is still serving some clients. Do you fail over?

    2 min answer failoversplit-brainfencingpartition
  11. Failure Modes advanced

    A downstream service slows from 50 ms to 3 s. Within two minutes every service in the request path is down, including ones that do not call it. Explain the mechanism.

    2 min answer cascadingpoolslittle's-lawretries
  12. Failure Modes advanced

    A ride-hailing platform has a severe driver shortage in one region. Demand estimation, pricing, dispatch, queueing and driver incentives all interact. How do you prevent an unstable feedback loop?

    2 min answer olamarketplacefeedback-looppricing