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Quiz

2627 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 areas2627 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture77 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture85 Cost Architecture & FinOps82 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization82 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

5 questions in Change Data Capture.

  1. Change Data Capture advanced

    A downstream team needs to react to order changes. The order service can publish events, or they can consume CDC from its database. Which, and why?

    2 min answer cdceventscouplingintegration
  2. Change Data Capture intermediate

    A logistics platform needs its operational database changes to reach a search index and an analytics warehouse. An engineer proposes writing to all three from the application. What is wrong, and what is the alternative?

    2 min answer portercdcdual-writeoutbox
  3. Change Data Capture intermediate

    A marketplace's search index lags several minutes behind catalogue updates and sellers complain their listings appear stale. Compare synchronous indexing, CDC pipelines and read-after-write patching at query time.

    2 min answer marketplacesearchcdcindexing
  4. Change Data Capture advanced

    A mobility platform wants operational database changes available to analytics and search within seconds, without adding load to the transactional databases. Design the change-data-capture pipeline and identify its principal failure modes.

    3 min answer cdclog-basedreplicationstreaming
  5. Change Data Capture advanced

    A team plans to publish database row changes via CDC as the organisation's domain events. What is wrong with that and what would you propose?

    3 min answer cdcoutboxdomain-eventscoupling