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Quiz

2777 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 areas2777 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering93 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 Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

1029 questions.

  1. Streaming Cost intermediate Multiple choice

    A topic ingests 200 MB per second, replication factor 3, retained 30 days. Producers and consumers are spread across 3 availability zones with no rack awareness in the consumers. Roughly what does the storage footprint come to?

    3 min answer kafkacostretentionreplication
  2. Streaming Joins intermediate

    A job enriches order events with customer tier by looking up a table built from a compacted topic. After a routine deploy, 3% of orders in the first ten minutes come out with tier null, then the rate returns to zero. Throughput and error rate are flat. What is happening?

    2 min answer streaming joinsbootstrapraceenrichment
  3. Streaming Schema Evolution intermediate

    A team needs to change the schema of an event that many consumers read. What is the safe process?

    2 min answer sharechatschemacompatibilityregistry
  4. Streaming SLOs intermediate

    Consumer lag has grown from 30 seconds to 4 minutes over a week. Throughput and error rates are normal. What is happening and how urgent is it?

    2 min answer streamingoperationscapacity
  5. Streaming SLOs intermediate

    What SLOs should a streaming pipeline publish, and why is availability the wrong headline metric?

    2 min answer streaming-sloslagcompletenessfreshness
  6. 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
  7. Streaming vs Batch intermediate

    A product manager asks for a "real-time" dashboard. How do you turn that into a design decision?

    2 min answer requirementslatencycost
  8. Streaming vs Batch intermediate

    A quick-commerce platform must decide whether a data flow should be streaming or batch. What actually decides it?

    2 min answer zeptostreamingbatchlatency
  9. Streaming vs Batch intermediate

    Which parts of a grocery platform's data processing genuinely require streaming, and which are better as batch?

    1 min answer streamingbatchfreshnesscost
  10. Stress Testing intermediate

    What is the purpose of stress testing beyond load testing, and what should a communication platform learn from deliberately breaking itself?

    2 min answer stress-testingbreaking-pointdegradationrecovery
  11. Structured Logging intermediate

    A platform moves from free-text logs to structured logs. What becomes possible, and what discipline must accompany it to avoid making things worse?

    2 min answer structured-loggingschemacardinalityquerying
  12. Structured Logging intermediate

    A ride-hailing platform of Grab's shape standardises on structured logs. After a release, the on-call dashboard that counts failed trips by city reads zero for three services and normal numbers for the rest. No errors are being reported anywhere. What broke, and what should have caught it?

    2 min answer grabstructured loggingschema driftlog management