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Quiz

2988 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 areas2988 Architecture Fundamentals91 Distributed Systems111 Data Architecture100 Cloud Architecture97 Networking96 API & Integration Architecture97 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

2988 questions.

  1. Peak Event Readiness advanced

    Retail leadership proposes a six-week change freeze covering the entire estate from mid-November. Respond.

    2 min answer retailfreezeriskgovernance
  2. Peak Event Readiness advanced

    You expect 10x traffic on a known date six weeks away. Walk through the preparation.

    3 min answer peakcapacitychange-freezeload-shedding
  3. Performance Budgets intermediate

    A design platform's web application has grown steadily slower with no single change responsible. What mechanism prevents this, and how should it be enforced?

    2 min answer performance-budgetsciregressionfrontend
  4. Performance Budgets intermediate

    A web experience for low-end devices on slow networks keeps regressing despite good intentions. What mechanism prevents this, and what must it measure?

    2 min answer physics-wallahperformance-budgetmobileregression
  5. Performance Budgets intermediate

    What does a latency budget give you that a latency target does not?

    2 min answer latency-budgetallocationregressionci
  6. Performance Budgets intermediate

    What is a performance budget, why do most attempts at one fail, and how should it be enforced so it actually constrains behaviour?

    2 min answer performance-budgetsregressionciratchet
  7. Performance Budgets advanced

    You own the 200 ms p95 budget for a search API and measure 188 ms today. Product wants a personalisation call that costs 60 ms at p95. Walk me through the conversation and what you would commit to.

    3 min answer performance-budgetslatencyprioritisationdegradation
  8. Performance & Capacity advanced

    A distributed training job runs at 90% scaling efficiency on 512 GPUs. At 1,024 GPUs it drops to 60%. Walk me through where the time went, what you would measure, and what you would try.

    3 min answer nvidiadistributed trainingcollectivesnccl
  9. Performance & Capacity intermediate

    A search engine holds its index entirely in memory to guarantee predictable latency. What does that buy, what does it cost, and when is it the wrong choice?

    2 min answer typesensemeilisearchin-memorypredictability
  10. Performance & Capacity advanced

    Millions of customers attempt to buy a small number of items at a scheduled instant. Which performance constraint dominates, and why do conventional scaling techniques fail against it?

    2 min answer flash-salecontentionhot-keyinventory
  11. Performance & Capacity intermediate

    Peak trading day is six weeks away and expected to be four times normal traffic. What do you do in those six weeks?

    3 min answer capacityload-testingpeakreadiness
  12. Performance & Capacity intermediate

    Precompute every user's timeline at write time, or assemble it at read time? Explain why the answer for a social feed is neither.

    2 min answer case-studytwitterfan-outpower-law