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Quiz

2868 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 areas2868 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 Communication102 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience92 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

2868 questions.

  1. Integration Test Boundaries intermediate

    Where should the boundary of an integration test sit, and what is the common mistake?

    2 min answer integration-testsboundariesstubsdeterminism
  2. Internal Developer Platform advanced

    An organisation is building an internal developer platform. What should be in scope, and what is the most common scoping error?

    2 min answer idpscopeabstractionself-service
  3. Internal Developer Platform advanced

    Leadership asks whether to build an internal developer platform or buy one. Twelve teams, forty services, growing. How do you frame the decision?

    2 min answer platformbuild-vs-buydeveloper-experience
  4. Internal Developer Platform intermediate

    Review this. A 12-engineer startup with 6 services has built an internal developer platform - a React portal, a YAML DSL that generates Terraform, a bespoke secrets service backed by cloud KMS, a service catalogue and a maturity scorecard with 23 checks. Two of the twelve engineers work on it full time. Deploys take 14 minutes and the DSL covers about 60% of what teams need, with the rest hand-written Terraform merged by those two engineers. What would you remove, what would you change, and what would you leave alone?

    3 min answer internal developer platformpragmatismabstractionbuild-vs-buy
  5. Internal Developer Platform intermediate

    Your service catalogue says every service has an owner. Investigating an incident, you find the named owner left the company eight months ago. How do you prevent this class of problem?

    2 min answer catalogueownershipmetadata
  6. Internationalisation intermediate

    09:10 a release adds Portuguese for Angola. 09:40 support in Luanda reports prices shown in Brazilian reais with Brazilian tax wording. 10:05 one page shows English legal copy inside an otherwise Portuguese flow. No pricing or tax code changed in the release and every response is HTTP 200. What failed and which design decision allowed it?

    2 min answer i18nlocale-negotiationfallbackpricing
  7. Internationalisation advanced

    A commerce platform expands across markets with different languages, scripts, currencies and layout directions. What breaks that teams do not anticipate?

    1 min answer i18nrtllocalisationformatting
  8. Internationalisation intermediate

    A learning platform must support many languages including ones with different scripts and text directions. What must be architectural rather than cosmetic?

    2 min answer unacademysharechati18nrtl
  9. Internationalisation intermediate

    A release goes out and checkout fails for users in one market only - Turkey. The code path is identical for everyone and no market-specific logic was changed. The error is a failed comparison against a string constant. What happened?

    3 min answer internationalisationlocaleunicodedefects
  10. Internationalisation intermediate

    What must be designed for internationalisation on day one, and what can genuinely wait?

    2 min answer i18ndata-modeltimezonesretrofit
  11. IoT Ingest Architecture advanced

    A million devices report telemetry every ten seconds. How should ingest, buffering, backpressure and storage be designed, and where do naive designs fail?

    3 min answer iotingestbackpressureprotocols
  12. IoT Ingest Architecture advanced

    After a five-minute network outage at your ingest tier, 200,000 devices reconnect simultaneously and the authentication service collapses. How do you fix this?

    2 min answer iotthundering-herdresiliencescale