Backend · Senior · System design

Design a concert ticket sales system where, the moment sales open, hundreds of thousands of people show up for a few thousand seats.

~10 min by voice

How to approach it

This checks whether you can design a system for a sharp demand peak on a limited resource: strict correctness where it's needed (no double sales) and cheap scalability where it's possible (reads, the queue). Plus whether you think through the hold lifecycle and the edge cases around payment.

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Topics

system design concurrency

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~10 min