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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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27 questions

  1. 1Azure provides HPC and wants to maximize its usage in the energy sector. What would be your strategy to ensure all energy sector clients move to HPC instead of AWS services?HardProduct· Google
  2. 2How much does it cost Google to run Google Photos?HardProduct· Google
  3. 3Estimate the cost to replace lost street view data for Google Maps in NY.HardBehavioralProduct· Google
  4. 4How many drones would be needed to deliver all FedEx packages in the US?HardProduct· Google
  5. 5Pick an airport and estimate the number of people going through the metal detectors in a day.HardProduct· Google
  6. 6Estimate the annual cost of running YouTube.HardProduct· Google
  7. 7Estimate the cost of storing Google Earth photos.HardProduct· Google
  8. 8Estimate the annual cost of managing Google Photos. What factors would you consider in your calculation?HardProduct· Google
  9. 9Estimate how much it costs to run Youtube for a dayHardProduct· Google
  10. 10Estimate the storage needs for Google Photos on Pixel phones.HardProductSystem design· Google
  11. 11Estimate the number of people who use Google Search to find a new job.HardProduct· Google
  12. 12You're a PM for Gmail. Your team won a communications contract with a 10,000-person colony on Mars. Estimate the necessary network bandwidth.HardProduct· Google
  13. 13Estimate the number of potholes in continental USA.HardProduct· Google
  14. 14Estimate the storage needed for a day's worth of information from your brain.HardProductSystem design· Google
  15. 15Estimate the total time wasted in meetings across the US.HardBehavioralTechnical· Google
  16. 16As a PM for Gmail, how much storage will you plan to buy for next year?HardProduct· Google
  17. 17Estimate the bandwidth requirements for Google Maps.HardProduct· Google
  18. 18How much storage does Google Maps' Street View require?HardProduct· Google
  19. 19Google wants to launch a refrigerator. Design it and estimate its first year sales.HardProduct· Google
  20. 20How much storage should Google allocate for a contact lens that shoots HD videos and syncs to the cloud?HardProduct· Google
  21. 21What is the market size for driverless cars in 2025?HardDataProduct· Google
  22. 22What is the monthly sales volume of Pixel phones in Africa?HardProduct· Google
  23. 23A leading Canadian grocery chain is considering opening its first store in Montreal. Should they? If yes, what should be the ratio of self-checkout kiosks to cashier counters?HardProduct· Google
  24. 24How many ping pong balls can fit in a helicopter?HardProduct· Google