Track 5 · Design Interview Problems
Design Dream11 / Leaderboard (Real-Time Gaming Scoreboard) 10 million cricket fans in a Dream11 IPL mega contest. How to calculate real-time ranks when Bumrah takes a wicket and 60 lakh teams gain points simultaneously.
Interview problem 25 min read 1 interactive
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System Design Notes & 75 Sandboxes
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Production War Stories: Battle-tested failure modes and zero-fluff trade-offs.75 Docker Sandboxes: Hands-on reproduction of replication lag, Kafka rebalances, Tatkal locks, etc.Interactive Simulators: Stepper animations, real metrics, and architecture diagrams.Architect-Level Rigour: Sizing estimates, API contracts, and schema designs.
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