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Quiz

2667 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 areas2667 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture86 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture90 Data Platform Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88
Difficulty Any beginner intermediate advanced

91 questions in Enterprise Architecture.

  1. EA Metrics intermediate

    Leadership wants to buy an enterprise architecture repository tool. How do you advise?

    1 min answer enterprise-architecturetoolinggovernance
  2. Enterprise Architecture advanced

    An enterprise architecture function has produced extensive documentation over three years and business leaders question its value. What is the function doing wrong?

    2 min answer enterprise-architecturevaluedecisionsdocumentation
  3. Enterprise Architecture advanced

    You inherit an estate of roughly 400 applications, no reliable inventory, and a mandate to reduce cost and risk. What do you do in the first ninety days?

    2 min answer portfoliorationalisationgovernancemodernization
  4. Enterprise Integration advanced

    A workforce platform must integrate with hundreds of external systems with wildly different reliability. What integration architecture scales, and what does not?

    2 min answer ripplingdeelintegrationisolation
  5. Enterprise Integration advanced Multiple choice

    An ecosystem of many business lines needs to share data and events. Should integration be point-to-point, through a central hub, or event-driven? What decides it?

    2 min answer integrationhubeventscoupling
  6. Enterprise Integration advanced

    An estate has 140 point-to-point integrations between 20 systems. What is the problem and what would you do?

    2 min answer integrationtopologycanonical-modelevents
  7. Enterprise Integration advanced

    An estate has 34 systems, 210 running interfaces, and a proposal to introduce a canonical hub. Before deciding, estimate the annual engineering cost of the current integration surface and how it changes when one system's schema is revised. Which number should decide the proposal?

    3 min answer integrationcanonical-modelestimationchange-amplification
  8. Enterprise Integration advanced

    In 2017 The New York Times described replacing a web of API and feed integrations with a single ordered Kafka log - the Monolog - holding every published asset as the source of truth, with back-end systems consuming from it. What forced that change, what did it cost, and where would copying it be a mistake?

    3 min answer new york timeskafkalog-as-source-of-truthintegration
  9. InnerSource intermediate

    An organisation adopts an innersource model so teams can contribute to each other's services. It mostly does not happen. What conditions does innersource require?

    2 min answer innersourcecontributionownershipincentives
  10. InnerSource intermediate

    An organisation has published an innersource contribution guide, opened every internal repository, and added a company goal for cross-team contributions. Six months in there have been eleven contributions across 200 repositories. Review the programme.

    3 min answer innersourceincentivesplatform-teamsmaintainer-capacity
  11. InnerSource intermediate

    An organisation wants shared internal libraries and services to be improvable by any team. What conditions make innersource work, and when does it fail?

    2 min answer innersourceownershipcontributionplatform
  12. InnerSource intermediate

    An organisation wants shared internal libraries maintained collaboratively across teams. What must be true for innersource to work, and when does it fail?

    2 min answer gustoinnersourceownershipcontribution