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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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575 questions

  1. 193How would you measure success metrics for Facebook Fundraisers?MediumDataProduct· Meta
  2. 194How would you measure success for Facebook Groups?MediumDataProduct· Meta
  3. 195You're launching Facebook Jobs in two weeks. What key metrics would you track to measure its success?MediumData· Meta
  4. 196You've just launched Facebook Jobs, a marketplace for employees and employers. Job listings are up 20%, but employer response time for applicants is down 20%. How would you approach this?MediumDataProduct· Meta
  5. 197You arrive in the office to find Facebook Lite opens on Android are down 10%. How would you diagnose the issue?MediumDataProduct· Meta
  6. 198What metrics would you define for the success of Facebook Lite?MediumDataProduct· Meta
  7. 199You're a PM for Facebook Marketplaces and return from a 10-day vacation to find that traffic has dropped by 10%. What would you do?MediumDataProduct· Meta
  8. 200You're the PM for Facebook Newsfeed. How would you decide on auto-play videos versus click-to-play?HardDataProduct· Meta
  9. 201The ad publishing rate dropped for Facebook Ad Manager. What actions would you take?MediumDataProduct· Meta
  10. 202How can Facebook improve preparing for another pandemic?MediumBehavioral· Meta
  11. 203Design a product for Facebook to combat Covid-19.HardProduct· Meta
  12. 204You're a PM at Facebook. How would you decide whether to remove the profile photo step from the onboarding experience?MediumData· Meta
  13. 205Should Facebook remove the requirement for users to upload a profile picture during sign-up?MediumDataProduct· Meta
  14. 206How would you select which reactions to implement for Facebook Reactions?HardDataProduct· Meta
  15. 207You're the PM for Facebook Reactions. With reactions up 20% but comments down 10%, what actions would you take?HardDataProduct· Meta
  16. 208How would you measure the success of Facebook Stories?MediumDataProduct· Meta
  17. 209You're a PM on Facebook Watch working on a redesign that improved watch time but dropped likes and comments. Should you ship this?HardDataBehavioral· Meta
  18. 210You're designing an A/B test to evaluate the impact of showing content from non-friends in users' feeds. How would you test this with proper randomization?MediumData· Meta
  19. 211Find a local minima in an array Last UpdatedMediumCoding· Meta
  20. 212Find the equilibrium index in an array where sum of elements to the left is equal to sum of elements to the right.MediumCoding· Meta
  21. 213Given a list of strings, find all strings that encode to the same value using a Caesar Cipher. (A Caesar Cipher rotates characters, e.g. in CC3: a->d, b->e, ..., z->c)MediumCoding· Meta, Pinterest
  22. 214Explain how to find a target sum in an array.MediumCoding· Adobe, Google
  23. 215Given an array of numbers where every number occurs twice except one, how would you find the unique number in O(log n) time?MediumCoding· Meta
  24. 216Can you outline a framework for a go/no-go decision? For example, you are a PM who just onboarded and need to decide whether to ship a feature that the previous PM worked on.MediumDataProduct· Meta