Backend · Junior · Theory

What is a race condition? Give an example from the backend and explain how to avoid it.

~4 min by voice

How to approach it

The interviewer wants to see whether you understand that race conditions happen not only in multithreaded code but also in an ordinary backend with parallel requests to shared data. It's important to give a concrete example, explain the "read, check, write" mechanism, and know practical ways to protect against it at the database level.

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concurrency race conditions

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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 · ~4 min