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
Filters · onDifficulty, topic, company

478 questions

  1. 361What factors contributed to the dramatic increase of Amazon Prime subscribers between 2008 and 2009?MediumDataProduct· Amazon, Google
  2. 362Tell me about the analytics you used for the earlier mentioned product.MediumDataProduct· Meta
  3. 363What is the benefit of A/B testing?MediumData· Intercom
  4. 364If you had 20 engineers, 100,000 computers, and 3 months, what would you build?HardDataProduct· OOath, Yahoo
  5. 365As the owner of a burger shop, how would you investigate a decline in sales?MediumDataProduct· Google
  6. 366How have you changed an opinion or direction using data?MediumData· Amazon, Uber
  7. 367How do you collect user requirements?MediumDataProduct· Capital One
  8. 368What are common linear regression problems?MediumDataTechnical· Amazon
  9. 369What data points are needed to implement Google's carpool program?MediumData· Google
  10. 370As the data scientist, interpreting a significant increase in revenue from a new feature in one of 20 countries, what would you recommend?MediumData· TikTok, Valve
  11. 371How would you debug a 20% drop in usage of one of our tools over 2 weeks?MediumDataProduct· Flatiron Health
  12. 372There is a 15% decline in cart additions on Flipkart. What could be the issue?MediumDataProduct· Flipkart
  13. 373How would you define success for Facebook Pages?MediumDataProduct· Meta
  14. 374Define success for Meta's local awareness ads.MediumData· Meta
  15. 375How do you define success metrics?MediumData· Google, Match Group
  16. 376How do you define the scope of the problem you are solving?MediumDataBehavioral· Dell
  17. 377When will you delegate versus take ownership?MediumDataProduct· Nuro
  18. 378How would you decide whether to make shuttles in Facebook's Menlo Park campus on-demand versus on-schedule?MediumData· Meta
  19. 379How did you determine your positioning was effective?MediumDataBehavioral· Shopify
  20. 380How would you determine the success of Facebook Videos?MediumData· Meta
  21. 381Your sales team reports a KPI drop. How would you diagnose the issue?MediumDataProduct· Yelp
  22. 382You're an analyst at the government's health department. How would you distribute 5,000 vaccines among 100,000 people?MediumData· Walmart Labs
  23. 383Tell me about your most effective team. What made them effective? What methods did you use to enhance their effectiveness?MediumDataBehavioral· Block
  24. 384How would you efficiently sort a list of numbers?MediumData· Google