Real Time Systems and Marketplaces Questions

Covers the design and operational considerations for low latency event driven systems and the marketplace dynamics that rely on them. Topics include stream processing and messaging architectures, ordered delivery, throughput and latency trade offs, partitioning and geographic sharding, backpressure and flow control, idempotency and at least once versus exactly once delivery models, state management and snapshotting, and failure and recovery patterns. Also include domain specific algorithms such as dispatch, matching, routing, and dynamic pricing, and how real time signals affect business metrics like conversion, utilization, pricing elasticity, and customer experience. Candidates should be able to discuss observability, testing and simulation approaches for real time behavior, and cost and operational trade offs when scaling these systems.