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Quiz

2741 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 areas2741 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering84 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 Architecture90 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

1018 questions.

  1. Model Selection intermediate

    A content platform must choose between a large hosted model, a smaller hosted model and a self-hosted open model for a moderation task. What decides it?

    2 min answer sharechatmodel-selectioncostlatency
  2. Model Selection intermediate

    A recommendation service's model server is down at peak. Should the application fall back to an older model, precomputed candidates, popularity baselines or cached per-user results — and how is the fallback tested?

    2 min answer fallbackdegradationrecommendationsresilience
  3. Model Selection intermediate

    Your music recommender uses collaborative filtering. Newly released tracks are never recommended. Why, and what do you do?

    2 min answer spotifyrecommendationscold-startensemble
  4. Modernisation Business Case intermediate

    A modernisation programme cannot get funded because its benefits are technical. How should the case be made?

    2 min answer gustobusiness-casefundingevidence
  5. Modernisation Business Case intermediate

    An architect must justify continued investment in a modernisation programme after eighteen months with the end state not yet reached. What should the argument be?

    2 min answer business-caseincremental-valueevidencesponsorship
  6. Modular Monolith intermediate

    A product team of fifteen engineers must choose between a modular monolith and services. What should decide it?

    2 min answer loommodular-monolithboundariesteam-size
  7. Modular Monolith intermediate

    A team adopts a modular monolith. What must they do forever, and what happens if they stop?

    2 min answer modular-monolithenforcementciboundaries
  8. Modular Monolith intermediate

    A team chooses a modular monolith over microservices. What makes the module boundaries actually hold, and what signals indicate it is time to extract a service?

    3 min answer modular-monolithboundariesenforcementextraction
  9. Modular Monolith intermediate

    What mechanically enforces module boundaries in a monolith, and what happens without enforcement?

    2 min answer modular-monolithenforcementdependency-rulesownership
  10. Modularity intermediate

    A developer platform composes Postgres, an auth service, storage, realtime subscriptions and an auto-generated API into one product. What makes that modular rather than merely multi-component, and what is the test?

    1 min answer modularitysupabasereplaceabilitycomposition
  11. Modularity intermediate

    A startup with 20 engineers and steady moderate traffic proposes moving to microservices to prepare for growth. What would you recommend and under what conditions would you change your mind?

    3 min answer modular-monolithmicroservicesteam-sizeshopify
  12. Monolith vs Microservices intermediate Multiple choice

    A new product, one team of eight, uncertain requirements, ambitious growth plans. Monolith or microservices?

    2 min answer decisionboundariespragmatism