System Design · Google · Hard
Requirements Each topic below is typically covered in a single 60-minute interview: Distributed rate limiter — design an internal service that handles more than 10⁵ QPS across multiple tenants and regions. Quota limiter / Google Drive-style usage quota — before selecting counter types, time windows, or reconciliation behavior, determine whether the system must throttle requests, track resources by user or tenant, or prevent excess storage consumption. Worldwide real-time…
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