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Design a Ticket Booking System is a medium system design interview question covering Distributed Systems, concurrency, databases, queues — the kind asked at FAANG (Facebook/Meta, Apple, Amazon, Netflix, Google) and AI-first companies like Anthropic, OpenAI, and Nvidia.
Design a ticketing platform like Ticketmaster or BookMyShow: reserved seating with an interactive seat map, seats held for 8 minutes during checkout, payment via an external provider. Design for the hard case: a major concert on-sale where 10 million users arrive within minutes competing for 50,000 seats. The same seat must never be sold twice.
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