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
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2,498 questions

  1. 49Explain the core technical ideas behind video generation and where common intuitions fail.Medium· 10 min
  2. 50Explain the core technical ideas behind vision-language models and where common intuitions fail.Medium· 10 min
  3. 51Explain the core technical ideas behind voice cloning and where common intuitions fail.Medium· 10 min
  4. 52How do you decide whether to buy a GTM tool or build the workflow internally?MediumProduct· 10 min
  5. 53How do you prevent an agent from looping indefinitely?Medium· 10 min
  6. 54How would you choose between an open-source and proprietary model?MediumAI ML· 10 min
  7. 55How would you estimate the unit economics of an AI feature before launch?MediumProduct· 10 min
  8. 56How would you explain hallucination risk to a regulated enterprise customer?MediumProduct· 10 min
  9. 57How would you make an LLM output conform reliably to a schema?Medium· 10 min
  10. 58How would you version prompts, models, tools, and evaluation sets?MediumSystem design· 10 min
  11. 59Koko eating bananas.MediumCoding· Flipkart, Amazon
  12. 60LRU CacheMediumCoding· Adobe, Amazon
  13. 61Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  14. 62Most Stones Removed with Same Row or ColumnMediumCoding· Myntra, Amazon
  15. 63Next PermutationMediumCoding· Nvidia
  16. 64Partition equal subset sumMediumCoding· Google
  17. 65Rearrange array elements by signMediumCoding· Expedia
  18. 66Tell me about a time data or experimentation changed your decision under ambiguity.MediumDataBehavioral· 10 min
  19. 67Top k frequent elementsMediumCoding· Amazon, Apple
  20. 68What is data leakage, and how can it invalidate an evaluation?MediumAI ML· 10 min
  21. 69What is knowledge distillation, and when would you use it?Medium· 10 min
  22. 70When should a product use AI rather than deterministic software?Medium· 10 min
  23. 71When should you use an agent instead of a deterministic workflow?Medium· 10 min
  24. 72Why can adding more context make an LLM perform worse?Medium· 10 min