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Quiz

2741 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 areas2741 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience99 Observability92 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 Architecture102 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

98 questions in Data Platform Architecture.

  1. Analytics Cost Control intermediate

    An analytical platform's cost has grown faster than its usage. Which controls actually reduce it?

    2 min answer snowflakecostauto-suspendlayout
  2. Analytics Cost Control intermediate

    An analytics platform's cost is growing faster than its usage. What causes it, and which controls work without blocking analysts?

    2 min answer costwarehousepruninggovernance
  3. Analytics Cost Control advanced

    An analytics platform's query costs are growing faster than its data. What are the drivers and controls?

    2 min answer analytics-costbytes-scannedmaterialisationgovernance
  4. Analytics Cost Control intermediate

    One analyst's query cost £4,000 in a single afternoon. Leadership wants a policy. What do you actually implement?

    1 min answer finopswarehouseguardrails
  5. Analytics Cost Control intermediate

    The analytics bill has tripled in six months with no corresponding growth in users or data volume. Where do you look?

    1 min answer finopsanalyticscostgovernance
  6. Batch Orchestration advanced

    A data platform's batch jobs have complex interdependencies and a failure early in the night cascades. What orchestration properties matter?

    2 min answer orchestrationdependenciesidempotencybackfill
  7. Batch Orchestration advanced

    On the last Sunday in October a UK data platform's 01:30 daily job ran twice and duplicated rows in a revenue table. On the last Sunday in March the same job did not run at all. The scheduler is configured in local time. What failed, and what is the structural fix?

    3 min answer schedulingdaylight savingidempotencyutc
  8. Batch Orchestration advanced

    The batch orchestrator's scheduler process dies at 02:40 with about 30 tasks already running on workers. It is restarted at 03:00. The nightly load includes a MERGE into a revenue table and a push to a payments vendor. What happens between 02:40 and 03:15?

    2 min answer orchestrationidempotencyat-least-oncezombie-tasks
  9. CDC Pipeline Design advanced

    A CDC pipeline feeding your warehouse falls three hours behind during a source system's batch job, and the source's transaction log retention is 24 hours. What is the risk and what do you change?

    2 min answer cdcstreamingretentionoperations
  10. CDC Pipeline Design advanced

    A content platform's search index lags the source by up to 30 minutes. Product wants it under 10 seconds. What do you assess?

    2 min answer searchcdcfreshnesscost
  11. CDC Pipeline Design advanced

    A logistics platform feeds its warehouse from operational databases by change data capture. What must the pipeline design handle?

    2 min answer delhiverycdcschemaordering
  12. CDC Pipeline Design advanced

    A platform builds change data capture from its operational databases. What is the failure that turns an analytics problem into a production incident?

    2 min answer cdcbackpressureretentionschema