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.

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4,310 questions

  1. 1225How would you build an object detection system to identify and locate flowers in images?HardAI ML· Apple
  2. 1226How would you build a product for movies on Facebook?MediumProduct· Meta
  3. 1227How do you build an effective product-led growth strategy?MediumProduct· Nextdoor
  4. 1228How would you build social features on Lyft to increase user engagement?MediumProductSystem design· Apple, Lyft
  5. 1229Build a solution for employee travel at Facebook.MediumProduct· Meta
  6. 1230How would you build a system on a ticketing website to manage high traffic during simultaneous ticket purchases?HardProduct· Google, Meta
  7. 1231Build a table management system.MediumDataProduct· BBentobox
  8. 1232How would you build TinyURL?HardSystem designTechnical· Google, Meta
  9. 1233How would you build a shared laundry experience?MediumProduct· Google
  10. 1234How would you build a recommendation system for an e-commerce store?HardDataTechnical· Amazon, Lyft
  11. 1235How would you build a high-performance engineering team?MediumBehavioral· Stripe
  12. 1236How would you build a monitoring device for elderly people?HardProduct· Google
  13. 1237What are the business benefits and strategic reasons for a bank to develop a banking app?MediumProduct· Capital One
  14. 1238Given a list with response time for each server, calculate how long time it will take to process n requests.MediumCoding· Google
  15. 1239Tell me about a time you took a calculated risk when speed was critical.MediumBehavioral· Amazon
  16. 1240How many tennis balls can fit in an airplane?MediumProduct· Agoda
  17. 1241You're the PM for a calendar app. How would you design metrics for it?MediumDataProduct· Meta
  18. 1242You are building CatGifs.com. How would you measure the site's performance?MediumTechnical· Asana
  19. 1243You're a PM for a chat messenger app. How would you prioritize between adding emoticons on the chat or adding chat backup?MediumDataProduct· Amazon
  20. 1244Write a function that takes an array of integers and checks for duplicate values in any contiguous window of size N.MediumCoding· Meta
  21. 1245Write a function to check whether a string contains a substring.EasyCoding· Nvidia
  22. 1246Design a self-driving car solution for kids.HardProduct· Google
  23. 1247How would you choose the right machine learning algorithm for your system?MediumTechnical· Google
  24. 1248How would you prepare a program to fix city roads?MediumDataProduct· Google