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.

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75 questions

  1. 25If LinkedIn messages are down, how would you identify the cause?MediumDataProduct· LinkedIn
  2. 26What could be the drivers for LinkedIn's performance in different markets?MediumDataTechnical· LinkedIn
  3. 27Find the longest palindromic subsequence using dynamic programming.MediumCoding· Adobe, Apple
  4. 28Find the lowest common ancestor (LCA) of two nodes in a binary tree.MediumCoding· Apple, LinkedIn
  5. 29Find the maximum subarray sum.MediumCoding· Adobe, Apple
  6. 30Measure the success of a mousetrap. How would you tell that our mousetrap is superior to the existing product?MediumData· LinkedIn
  7. 31How would you measure success for LinkedIn events?MediumData· LinkedIn
  8. 32Partition an array into two sub-arrays with equal sum.MediumCoding· Apple, LinkedIn
  9. 33How do you prioritize features for your engineering team?MediumBehavioral· eBay, LinkedIn
  10. 34Sort an array containing only 0s, 1s, and 2s.MediumCodingTechnical· LinkedIn
  11. 35Tell me about yourself.MediumBehavioral· Accenture, ADP
  12. 36As a TPM, how would you handle a project with unchanged deliverables but a cut in the time period by half?MediumDataProduct· LinkedIn
  13. 37What would you do if your VP of product proposes launching a separate LinkedIn messenger app?MediumBehavioralProduct· LinkedIn
  14. 38What is included in a web server request?MediumTechnical· LinkedIn
  15. 39What happens behind the scenes when you visit a Bitly URL in your web browser?MediumSystem design· LinkedIn
  16. 40Construct a binary tree from an ancestor matrix.MediumCodingTechnical· LinkedIn
  17. 41How would you convince stakeholders to launch a new analytics platform for LinkedIn?MediumBehavioral· LinkedIn
  18. 42Tell me about a time when you had to convince team members on something you proposed.MediumBehavioral· Amazon, Anthropic
  19. 43Design an AI data product.MediumProductSystem design· Accenture, LinkedIn
  20. 44Design and implement a ranked cache system.MediumCodingSystem design· LinkedIn
  21. 45Design the end-to-end user onboarding for an app.MediumProductSystem design· LinkedIn
  22. 46What domain-specific technical challenges have you encountered during program execution, and how did you solve them?MediumBehavioral· LinkedIn
  23. 47Tell me about a time when you managed an end-to-end program.MediumBehavioralProduct· Anduril, LinkedIn
  24. 48Give an example of a technical complexity you dealt with and your contributions.MediumBehavioralTechnical· LinkedIn