Account Balance & Cross-Region Event Platform

Requirements Round 1 — Highly Dependable Account Balance Service Create a service that provides a customer’s present account balance, ensuring strongly consistent writes while keeping read latency reasonable. It must tolerate the loss of one region without dropping or applying any balance change twice. Compare results with the system-of-record ledger and report any detected divergence. Round 2 — Multi-Region Event Processing Platform Architect a platform that accepts events…