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
FiltersDifficulty, topic, company

4,310 questions

  1. 2953Design an art solution for Instagram.MediumProduct· Meta
  2. 2954How would you design an autocomplete search results page?MediumSystem designTechnical· Google
  3. 2955Design a solution for borrowing and lending goods among neighbors on Facebook.MediumProductSystem design· Meta
  4. 2956Design browser history.MediumSystem design· Oracle, TikTok
  5. 2957Design a camera for the blind.HardProduct· GCGoogle Cloud (GCP)
  6. 2958Build an image carousel that displays a sequence of images (using React.js or vanilla JS).MediumCoding· Amazon
  7. 2959Design a cashless candy dispensing machine.MediumSystem design· Amazon
  8. 2960How would you design chess.com?HardProductSystem design· Meta, Panorama Education
  9. 2961How would you design a coffee machine for use on the International Space Station?MediumProduct· Google
  10. 2962Design a direct competitor to your favorite product.MediumProduct· Google
  11. 2963Design a concert ticketing service.MediumProduct· Google
  12. 2964Design a system that recommends the next Confluence pages a user should view.HardAI MLSystem design· Atlassian, PayPal
  13. 2965Design a data structure that supports insert, delete, search, and retrieve in constant time.MediumCoding· Meta
  14. 2966If you have a vector with many values, mostly zeroes, how would you design a data structure to represent it?MediumCodingTechnical· WWhatsApp
  15. 2967Design Doordash's Item Order review and rating system.MediumSystem design· DoorDash
  16. 2968Design an educational product for Instagram.MediumProduct· Meta
  17. 2969Design an educational product for Meta.MediumProduct· Dropbox, Meta
  18. 2970Design an elevator.MediumProduct· Amazon, Google
  19. 2971Design an experimentation platform for Google.HardProduct· Google
  20. 2972Design Facebook for doctors.HardProduct· Meta
  21. 2973Design a new volunteer feature in the Facebook app.MediumProduct· Meta
  22. 2974Design a fitness app.MediumProduct· Capital One
  23. 2975Design a food delivery app for restaurant owners and food vendors.MediumProduct· Microsoft
  24. 2976Design a fundraising product.MediumProduct· Meta