Question bank

4,310 interview questions, answered.

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

Easy 190Medium 2,498Hard 982
Filters · onDifficulty, topic, company
Clear all

575 questions

  1. 97Design a lending library for communities.MediumTechnicalProduct· Meta
  2. 98Design a DNS cache.MediumSystem design· Meta
  3. 99Design Dropbox.HardSystem design· Dropbox, Meta
  4. 100Design an evaluation framework for ads ranking.MediumAI MLProduct· Meta
  5. 101Design an events feature for a kids' messenger app.HardProductSystem design· Meta
  6. 102Design Facebook email.MediumProductSystem design· Meta
  7. 103Design Facebook Jobs.MediumProduct· Meta
  8. 104Design Facebook Messenger.HardSystem design· Meta, Microsoft
  9. 105Design Facebook Newsfeed.HardProductSystem design· Meta
  10. 106Design a product for Facebook to enable charity.MediumProduct· Meta
  11. 107Design a product for Facebook for the Olympics.HardProduct· Meta
  12. 108Design Facebook to be more secure, private, and intimate.HardProductSystem design· Meta
  13. 109Design a fake news detection system.HardAI MLProduct· Meta
  14. 110Design a fashion product for Facebook.MediumProduct· Meta
  15. 111Design a new sports feature in the Facebook app.MediumProduct· Meta
  16. 112Design a fitness app for Facebook.MediumProduct· Meta
  17. 113Design a food delivery app including UX for seller app, MVP creation, success metrics, user app flow, and geo-based hotel search.HardProduct· Meta, Microsoft
  18. 114Design a system to show the top 10 most frequently listened songs in the last 7 daysMediumSystem design· Meta
  19. 115Design Google Drive.HardSystem design· Meta, Microsoft
  20. 116Design a grocery delivery mobile app.HardProduct· Meta, Yahoo
  21. 117You're a PM for Meta. Design a product for group travel.HardProduct· Meta
  22. 118Design a feature surrounding hashtags for Instagram. How would you make hashtags engaging?MediumProduct· Meta
  23. 119Design Instagram.HardProductSystem design· Amazon, Instagram
  24. 120Design a product for job search on Facebook.MediumProduct· LinkedIn, Meta