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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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455 questions

  1. 145Tell me about a time when you gave a simple solution to a complex problem.MediumBehavioral· Amazon
  2. 146Given the root of a binary tree, return the length of the diameter of the tree.MediumCoding· Amazon, Google
  3. 147Tell me about how you brought a product to market.MediumBehavioralProduct· Amazon, Capital One
  4. 148How would you build a recommendation system for an e-commerce store?HardDataTechnical· Amazon, Lyft
  5. 149Tell me about a time you took a calculated risk when speed was critical.MediumBehavioral· Amazon
  6. 150You're a PM for a chat messenger app. How would you prioritize between adding emoticons on the chat or adding chat backup?MediumDataProduct· Amazon
  7. 151Tell me about a time when you designed a complex system architecture. What was your approach?HardBehavioral· Amazon
  8. 152How does Google Maps compute ETA?MediumTechnical· Amazon, Funding Societies
  9. 153Tell me about a time when you needed to convince a disagreeing team.MediumBehavioral· Amazon, Google
  10. 154Count items within compartments between specific indices of an array.MediumCoding· Amazon
  11. 155How did COVID-19 affect Amazon?MediumData· Amazon
  12. 156How would you create a carousel using vanilla JavaScript?MediumTechnical· Amazon
  13. 157How many people are on Facebook at any given time?MediumProduct· Amazon
  14. 158How many 'likes' happen on Instagram each day?MediumProduct· Amazon
  15. 159Classify products into categoriesData· Amazon
  16. 160Closed-form linear regression vs gradient descentData· Amazon
  17. 161How did you debug your ML project?HardData· Amazon
  18. 162KL divergence vs cross-entropyData· Amazon
  19. 163Statistical methods you've actually usedData· Amazon
  20. 164Supervised vs unsupervised vs reinforcement learningData· Amazon
  21. 165The 15-20 minute science talkData· Amazon
  22. 166Why that loss function?Data· Amazon
  23. 167Your favorite ML paperData· Amazon
  24. 168Tell me about a time data was the north star metric and how the analysis was performed.MediumDataBehavioral· Amazon