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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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60 questions

  1. 25Design a leaderboard system.MediumSystem design· Meta, Microsoft
  2. 26Design live commenting for Facebook.HardSystem design· Meta
  3. 27Design an end-to-end ML solution to detect ads selling weapons.HardSystem design· Meta
  4. 28Design a music streaming service for Facebook.MediumProductSystem design· Meta
  5. 29Design an online Chess Game that is fast, reliable, and supports 100 million monthly active users playing one game a week.HardSystem design· Meta
  6. 30Design a personalized news ranking system.HardAI MLSystem design· Meta
  7. 31Design a product for managing parking (not limited to cars).MediumProductSystem design· Meta
  8. 32Design a product recommendation system.HardAI MLSystem design· Meta, Pinterest
  9. 33Design a question and answer website like Quora.HardProductSystem design· Meta
  10. 34Design a shopping experience for Netflix.HardProductSystem design· Meta, Pinterest
  11. 35Design a system like YouTube.HardSystem designTechnical· Meta, Snowflake
  12. 36Design an app to search for therapists.MediumProductSystem design· Meta
  13. 37Design TikTok.HardSystem design· Google, Meta
  14. 38Design a typeahead box for a search engine.HardSystem design· Adobe, Amazon
  15. 39Design Uber Eats.HardSystem design· Amazon, Meta
  16. 40Design a web crawler.MediumSystem design· Anthropic, Google
  17. 41Design a web crawler to download content from www.example.com without detection.HardSystem design· Meta
  18. 42You're the PM for Facebook Rooms. What goals would you set for the next 6 months?HardDataProduct· Meta
  19. 43How would you improve Facebook Marketplace?MediumProductSystem design· Meta
  20. 44What signals would you use to improve Meta's News Feed relevance?HardProductSystem design· Meta
  21. 45How would you design 'Hot Topics' on Instagram?HardSystem design· Meta
  22. 46You are PM for Instagram. How would you decide on investing in a verification badge?HardProductSystem design· Meta
  23. 47As a product manager for Meta, design a product for volunteers.HardProductSystem design· Atlassian, Meta
  24. 48Design the system architecture for WhatsApp.HardSystem designTechnical· Meta, WhatsApp