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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4,310 questions

  1. 3865Copy a Spiral MatrixMediumCoding
  2. 3866Design a Data Warehouse Schema for Customer SupportMediumDataSystem design
  3. 3867AI-assisted coding (MLE 2.0 round)MediumData
  4. 3868Logistic regression from scratch (Python)MediumData
  5. 3869Metric choice for a 0.1%-positive fraud modelData
  6. 3870ML system design in the "MLE 2.0" research-eng roundHardData
  7. 3871OOP toy system (MLE 2.0 round)MediumData
  8. 3872Randomization and p-valuesData
  9. 3873What LLM-native companies actually askHardData
  10. 3874How would you decide if Agile methodology is suited for a project?MediumProductBehavioral
  11. 3875Two machines produce light bulbs: Machine A produces 60% of the bulbs while machine B produces the remaining. Machine A produces defective bulbs at a rate of 5%, while machine B produces defective bulbs at a rate of 3%. If a randomly selected bulb is defective, what is the probability that it was produced by machine A?MediumData
  12. 3876Explain the process of deletion from a binary search tree (BST).MediumTechnical
  13. 3877Describe what happens when you visit https://google.com in your web browser.MediumSystem design
  14. 3878Design an ETA System for a Maps App.HardAI MLSystem design
  15. 3879Design Google Docs.HardSystem design
  16. 3880Design an Instagram Ranking ModelHardAI MLSystem design
  17. 3881Design a meditation app.MediumProductSystem design
  18. 3882Design an ML monitoring system for a fantasy sports app, focusing on drift, performance, outliers, and quality.HardAI MLSystem design
  19. 3883Design Naukri, a job search platform.MediumSystem design
  20. 3884Design PasteBin.MediumProductSystem design
  21. 3885Design a podcast search engine.HardSystem design
  22. 3886Design a product to gather user feedback from various other products or services.MediumProduct
  23. 3887Design a queuing system for a call center with N representatives to handle more than N requests, where each request takes between 2 and 4 seconds to complete.MediumTechnical
  24. 3888Design a Spotify Recommendation System.HardAI MLSystem design