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Quiz

2988 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 areas2988 Architecture Fundamentals91 Distributed Systems111 Data Architecture100 Cloud Architecture97 Networking96 API & Integration Architecture97 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

5 questions in Event-Driven Architecture.

  1. Event-Driven Architecture advanced

    A platform adopts event-driven architecture broadly and finds debugging and reasoning much harder. When is event-driven the wrong choice?

    2 min answer event-drivencouplingdebuggingobligations
  2. Event-Driven Architecture advanced

    A team proposes routing every internal workflow through an event-streaming platform because it is scalable and decoupled. What questions do you ask and when is a simpler mechanism correct?

    3 min answer event-drivenkafkaover-engineeringtradeoffs
  3. Event-Driven Architecture advanced

    A topic holds 7 days of order events - about 3 TB of unique data at replication factor 3 across 24 partitions on 6 brokers - and has exactly one consumer group, which always reads within a second of the tail. At 14:00 an analytics team deploys a second consumer group configured to start from the earliest offset. What happens over the next hour?

    3 min answer event-drivenpage-cachebackfillquotas
  4. Event-Driven Architecture intermediate

    Before 2017 every consumer of published content at The New York Times integrated with each producing system's own API and bootstrapped its history by calling those APIs. The 2017 publishing pipeline replaced that with one Kafka log. What changed about the cost of adding the eleventh consumer, and about who pays for a backfill?

    3 min answer new york timeskafkaintegration costbackfill
  5. Event-Driven Architecture advanced

    Review this design. Every service publishes one event type per aggregate - OrderChanged carries the whole order document plus a changeType string. Eleven consumers subscribe and each begins with a switch on changeType, ignoring types it does not care about. What would you remove, what would you change, and what would you leave alone?

    3 min answer event-drivenevent granularitycouplingschema