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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

1029 questions.

  1. Trunk-Based Development intermediate

    What has to be true before a team can safely move to trunk-based development?

    2 min answer trunk-basedfeature-flagspipelinemigrations
  2. UI Monorepo Strategy intermediate Multiple choice

    Ten applications consume one design system and upgrades keep stalling because each app schedules them separately. Which release and consumption model keeps the total upgrade cost bounded as applications are added?

    2 min answer monorepodesign-systemsversioningcodemods
  3. UI Monorepo Strategy intermediate

    Ten frontend teams share a design system. Monorepo or separate repositories?

    1 min answer monorepotoolingatomic-changeboundaries
  4. Unit Economics intermediate

    A delivery marketplace's infrastructure cost per order is falling while total cost rises. Is that good, and what should the unit metric actually be?

    2 min answer unit-economicsmetricsmarketplacescaling
  5. Unit Economics intermediate

    An interviewer sets the exercise on a food-delivery platform of Zomato's kind - assume a flat delivery fee of $2.00 and a 70% gross-margin target on that fee. Work backwards to the infrastructure budget per order and then tell me what you would do with the number.

    2 min answer unit-economicsmarginbudgetsthresholds
  6. Value Streams intermediate

    A commerce platform's engineering throughput is high but features take months to reach merchants. Where does value-stream mapping look, and what does it typically find?

    2 min answer value-streamlead-timeflowwait-time
  7. Value Streams intermediate

    A quick-commerce business running dark stores maps the value stream for "launch a new product category". The map has five boxes - groomed, built, reviewed, tested, deployed - totalling 11 working days with flow efficiency of 46%. On the strength of it, leadership funds a £600k pipeline programme to cut the 11 days. Review the map and the decision.

    3 min answer value-stream-mappingflow-efficiencyscopeprioritisation
  8. Value Streams intermediate

    A quick-commerce business wants to improve its ten-minute promise. The engineering team optimises the checkout API. Why is that likely the wrong target?

    2 min answer zeptovalue-streambottleneckphysical
  9. Value Streams intermediate

    Delivery feels slow and leadership wants a productivity initiative. You propose mapping the value stream first. What will you map and what do you expect to find?

    1 min answer business-architectureflowlead-time
  10. Vector Databases intermediate

    A team needs vector search. When is a dedicated vector database justified over adding vector search to an existing store?

    2 min answer replicatevector-searchdatastoresoperations
  11. Vector Databases intermediate

    A team wants a dedicated vector database for a RAG system over 200,000 documents. Is it necessary?

    2 min answer ragtechnology-selectionpragmatism
  12. Vector Databases intermediate

    A user uploads a policy document at 09:02 and it appears in the document list immediately. At 09:20 the assistant still says it cannot find anything on the subject. Error rates are flat and the ingest queue is empty. Where do you look first?

    2 min answer vector-databasesingestionread-after-writedead-letter