Topic 17.3
Advanced Design Questions (36–50)
In one line
Fifteen design and deep-explanation questions: rate-limited event systems, payment pipelines, CDC platforms, multi-region clusters, analytics pipelines, exactly-once semantics, outbox, saga, event sourcing, CQRS, state stores, rebalancing, hot partitions, key selection and capacity planning.
Think of it like this
An architecture review board. Nobody asks what a beam is; they ask whether the building survives an earthquake and how you know.
Key ideas
- 01
Answer shape: clarify numbers, apply the reasoning chain, name failure scenarios and their handling, and finish with trade-offs.
- 02
These map to Phases 5–16.
Explain it without notes
36. Design a distributed rate-limited event system.
37. Design a payment event pipeline.
38. Design a CDC platform.
39. Design a multi-region Kafka deployment.
40. Design a high-throughput analytics pipeline.
41. Explain exactly-once semantics.
42. Explain the transactional outbox.
43. Explain Saga with Kafka.
44. Explain event sourcing.
45. Explain CQRS.
46. Explain Kafka Streams state stores.
47. Explain consumer rebalancing in depth.
48. Explain hot partitions.
49. Explain partition key selection.
50. Explain Kafka capacity planning.
Done when you can
I can deliver all 15 advanced answers using the reasoning chain with failure handling.