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 10Medium 67Hard 3
Filters · onDifficulty, topic, company
Clear all

67 questions

  1. 25As a PM for Instacart, what potential issues do you foresee after a customer places an order?MediumDataTechnical· DoorDash
  2. 26What are the different types of machine learning?MediumTechnicalAI ML· Google
  3. 27What is overfitting or underfitting? Which models are most likely to experience this, and why?MediumTechnicalAI ML· Nvidia, OpenAI
  4. 28What is caching and why is it needed?MediumTechnical· Amazon
  5. 29For a dataset with a million data points, would you use a DNN or KNN? Why?MediumTechnical· Pinterest
  6. 30What are common linear regression problems?MediumDataTechnical· Amazon
  7. 31Why is a deep neural network better than a shallow neural network?MediumTechnicalAI ML· Google, Nvidia
  8. 32Explain the key differences between BETWEEN and HAVING clauses in SQL.MediumTechnicalData· Deloitte
  9. 33What is the difference between inheritance and composition?MediumTechnical· Canva, Walmart Labs
  10. 34What is the difference between NoSQL and SQL?MediumTechnicalData· Amazon, Apple
  11. 35Explain the differences between linear and logistic regression.MediumTechnicalAI ML· Amazon, Google
  12. 36Explain the differences between nonconvex and convex functions.MediumTechnical· Pinterest
  13. 37Explain the differences between ReLU and Sigmoid.MediumTechnical· Pinterest
  14. 38What are some effective loss functions for computer vision models?MediumTechnical· Amazon
  15. 39What methods or metrics did you use to evaluate how well your LLM performs?MediumAI MLTechnical· Snap
  16. 40Explain callback functions.MediumCodingTechnical· Nvidia
  17. 41What is encapsulation?MediumCodingTechnical· Accenture
  18. 42What is a normalization layer?MediumTechnical· IBM
  19. 43Explain overfitting.MediumTechnical· Pinterest
  20. 44Explain semi-supervised learning.MediumTechnical· Amazon
  21. 45What is the goal of Microsoft Xbox?MediumDataTechnical· Meta
  22. 46Design a microservices architecture using Java Spring Boot.MediumTechnical· Nike, Rakuten
  23. 47How many gas stations are there in California?MediumTechnicalData· MasterClass
  24. 48How do you select the value of 'k' in the k-means algorithm?MediumTechnicalAI ML· Microsoft