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4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

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135 questions

  1. 49Design a product recommendation system.HardAI MLSystem design· Meta, Pinterest
  2. 50Design a product targeted at wine drinkers.HardProduct· Meta
  3. 51Design a question and answer website like Quora.HardProductSystem design· Meta
  4. 52Design a shopping experience for Netflix.HardProductSystem design· Meta, Pinterest
  5. 53Design a stock trading product for Facebook.HardProduct· Meta
  6. 54Design a system like YouTube.HardSystem designTechnical· Meta, Snowflake
  7. 55Design TikTok.HardSystem design· Google, Meta
  8. 56Design a typeahead box for a search engine.HardSystem design· Adobe, Amazon
  9. 57Design Uber Eats.HardSystem design· Amazon, Meta
  10. 58You're the PM for Meta's Social Good team. Design a new product to encourage more volunteering.HardProduct· Meta
  11. 59Design a voting system.HardTechnical· Meta
  12. 60Design a web crawler to download content from www.example.com without detection.HardSystem design· Meta
  13. 61Diagnose a 20% drop in Facebook Groups usage.HardDataProduct· Meta
  14. 62Instagram sees a 5% decrease in Daily Active Users (DAU) over a week. How do you determine the root cause?HardData· Meta
  15. 63Estimate how much bandwidth is needed for launching YouTube TV.HardDataProduct· Meta
  16. 64Estimate Facebook's yearly advertising revenue.HardProduct· Meta
  17. 65How would you evaluate the impact of fake news on Facebook users?HardData· Meta
  18. 66You're PM for Facebook ads. How would you define success metrics for the team? You're considering adding GenAI capabilities to the ad creation process for new sellers. How would you decide whether to ship this?HardDataProduct· Meta
  19. 67You're a PM for Facebook Feed. How would you decide if you should split the page into separate tabs for friends and non-friends content?HardDataProduct· Meta
  20. 68You're the PM for Facebook Newsfeed. How would you decide on auto-play videos versus click-to-play?HardDataProduct· Meta
  21. 69Design a product for Facebook to combat Covid-19.HardProduct· Meta
  22. 70How would you select which reactions to implement for Facebook Reactions?HardDataProduct· Meta
  23. 71You're the PM for Facebook Reactions. With reactions up 20% but comments down 10%, what actions would you take?HardDataProduct· Meta
  24. 72You're a PM on Facebook Watch working on a redesign that improved watch time but dropped likes and comments. Should you ship this?HardDataBehavioral· Meta