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Quiz

275 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 areas275 Architecture Fundamentals9 Distributed Systems26 Data Architecture23 Cloud Architecture19 Networking17 API & Integration Architecture13 Reliability & Resilience9 Observability8 Performance & Capacity Engineering6 Security Architecture16 Cost Architecture & FinOps6 Business Architecture7 Architecture Communication6 Enterprise Architecture6 Legacy Modernization7 AI-Era Architecture6 Software Architecture & Engineering6 Architecture Patterns6 Architecture Decision-Making12 The Architect's Meta-Skills6 Delivery & Release Engineering6 Platform Engineering & Developer Experience6 Testing & Quality Architecture6 Data Platform Architecture6 Streaming & Real-Time Data6 Data Governance & Semantics6 Frontend & Experience Architecture6 Edge, Mobile & IoT6 Regulatory & Data Protection Architecture6 Assurance, Audit & Model Risk7
Difficulty Any beginner intermediate advanced

6 questions in Streaming & Real-Time Data.

  1. Backfill & Reprocessing advanced

    A logic bug means six months of a derived table are wrong. You must reprocess without disrupting live consumers. How?

    2 min answer data-platformbackfillreprocessingcorrectness
  2. CDC to Stream advanced

    A team proposes exposing their service's database change stream via CDC so other teams can consume it, avoiding the work of building an event API. What is your assessment?

    2 min answer cdcintegrationcouplingcontracts
  3. Exactly-Once Semantics advanced

    A vendor claims their streaming platform provides exactly-once processing. How do you evaluate the claim?

    1 min answer streamingsemanticsvendorcorrectness
  4. Streaming SLOs intermediate

    You are handing a streaming pipeline to an operations team who have never run one. What must exist before they accept it?

    2 min answer streamingoperationshandoverrunbooks
  5. Streaming vs Batch advanced

    A business sponsor asks for a real-time data platform because "the competition has one". Reporting is currently a nightly batch that lands at 06:00 and nobody has complained. How do you handle this?

    2 min answer streamingbatchrequirementscost
  6. Watermarks & Late Data advanced

    Your streaming aggregate reports 2% lower daily revenue than the batch reconciliation. Both are "correct". Explain what is happening and how you resolve it.

    2 min answer streamingwatermarkslate-datacorrectness