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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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766 questions

  1. 97Estimate the cost to replace lost street view data for Google Maps in NY.HardBehavioralProduct· Google
  2. 98How many grains of rice are in a 10kg bag?MediumProduct· Google
  3. 99What is the current strategy of 15-minute delivery apps?MediumProduct· Google
  4. 100Your largest customer is advocating for a new feature not in your roadmap. What do you do?MediumBehavioral· Google, OpenAI
  5. 101How many 'likes' happen on Facebook each day?Medium· Google
  6. 102How would you debug a failing NUC in a data center?MediumTechnical· Google
  7. 103How would you decide between two routing algorithms for Google Maps?HardData· Google
  8. 104How would you decide to show or not show ads on Waymo self-driving cars?HardProduct· Google
  9. 105How would you decide on a KPI for building a system and how would you improve it?MediumDataProduct· Google
  10. 106Tell me about a time when you made a decision based on data and were wrong.MediumBehavioral· Amazon, Google
  11. 107How would you define success for YouTube search?MediumData· Google
  12. 108Describe what happens when you type a URL into your browser and press Enter.MediumTechnical· Google, Uber
  13. 109Design a birthday app.MediumProduct· Google
  14. 110Design a time machine.HardProduct· Google
  15. 111Design an alarm clock for blind people.MediumProduct· Google, Microsoft
  16. 112Design an algorithm to rank ads in the Google Play Store. Include primary and secondary success metrics.HardDataTechnical· Google
  17. 113Design an app for museum visitors.MediumProduct· Google
  18. 114Design an app for gardening.HardProduct· Google, Meta
  19. 115Design an app that helps a museum generate revenue.MediumProductSystem design· Google
  20. 116Design an ATM for the blind.MediumProduct· Google, Microsoft
  21. 117Design an ATM for London's Heathrow Airport.MediumProduct· Google
  22. 118Design an ATM system that remains operational during natural disasters.HardProduct· Google, MongoDB
  23. 119Design a better alarm clock.MediumProduct· Google
  24. 120Design a billing system for a doctor's office with two locations in the Bay Area.MediumTechnical· Google