Portfolio ↗

Quiz

2707 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 areas2707 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 Architecture96 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 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

50 questions in Data Governance & Semantics.

  1. Data Governance & Semantics advanced

    An interviewer says - our data governance programme is eighteen months old. We have a catalogue, a glossary, twelve part-time stewards and a monthly council. The CFO asked last week whether it is working and I could not answer. What would you measure, and what would you tell leadership if the numbers are bad?

    3 min answer governancemeasurementstewardshipenforcement
  2. Data Governance & Semantics advanced

    You inherit an enterprise data estate with no governance at all and a two-year mandate. What do you do first?

    1 min answer governancesequencingprioritisationpragmatism
  3. Data Mesh advanced

    A CDO proposes moving to a data mesh because the central data team is a bottleneck with a nine-month backlog. How do you assess the proposal?

    2 min answer data-meshgovernanceoperating-modelplatform
  4. Data Mesh advanced

    A large enterprise wants to move from a central data team to a decentralised model. What determines whether that succeeds, and what does it not fix?

    1 min answer data-meshdecentralisationplatformownership
  5. Data Mesh advanced

    An interviewer says "we are going federated across about 40 domains. Which governance policies do we put in the platform as code and which stay as written guidance? Talk me through how you decide, and what the code version costs us."

    3 min answer data meshfederated governancepolicy as codeexceptions
  6. Data Mesh advanced

    An organisation is considering data mesh. What problem does it actually solve, what does it require, and when is a central platform team the better answer?

    2 min answer data-meshownershipdomainsplatform
  7. Data Mesh advanced

    What must exist before decentralising data ownership makes things better rather than worse?

    2 min answer data-meshplatformownershipincentives
  8. Data Observability advanced

    A data platform has thousands of datasets and cannot write manual quality tests for all of them. What should the observability approach be?

    1 min answer data-observabilityanomaly-detectionalertinglineage
  9. Data Products advanced

    Design a data product exposing merchant sales analytics to hundreds of thousands of independent merchants on a commerce platform. What makes it a product rather than a table?

    1 min answer data-productsownershipcontractsmulti-tenancy
  10. Data Quality Dimensions advanced

    A marketplace's seller metrics look wrong but every pipeline succeeded and every test passed. How do you diagnose it?

    1 min answer data-qualitydiagnosiscompletenesssemantics
  11. Data Sharing & Clean Rooms advanced Multiple choice

    A retailer wants to measure whether a brand's advertising drove in-store purchases. The brand has exposure data with hashed identifiers and the retailer has transactions. Neither may see the other's raw records. Which arrangement should they use?

    2 min answer clean roomprivacyaggregation thresholddifferential privacy
  12. Data Sharing & Clean Rooms advanced

    A retailer with 40 million loyalty members and a brand with 12 million exposed device identifiers want to measure in-store purchase lift inside a clean room. Hashed-email match comes back at about 23%. The four-week category purchase rate is around 2%. Roughly what relative lift can this measurement detect, and what does the number rule out?

    3 min answer clean-roomsmatch-ratestatistical-powermeasurement