Backend · Senior · System design

Design a news feed for a social network: users follow each other, the feed has to open instantly, and some authors have millions of followers.

~10 min by voice

How to approach it

They're checking whether you can pick a feed delivery model for an asymmetric load (reads ≫ writes) and solve the celebrity problem: understand the push/pull trade-off and arrive at a hybrid with well-thought-out storage and pagination.

Have you seen this question in a real interview?

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Topics

system design news feed

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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