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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11 questions

  1. 1How would you build a tool to authenticate products sold on TikTok Shop?HardProduct· TikTok
  2. 2Design a currency exchange system.HardSystem designTechnical· TikTok
  3. 3Design the 'For You' page on TikTok.HardSystem design· TikTok
  4. 4Design a Retrieval-Augmented Generation (RAG) system to help TikTok’s content moderation team detect and handle misinformation.HardAI MLProduct· TikTok
  5. 5Design a typeahead box for a search engine.HardSystem design· Adobe, Amazon
  6. 6Design a washing machine for Google.HardProduct· Google, TikTok
  7. 7Design a key-value store.HardSystem design· Accenture, Anthropic
  8. 8Estimate the number of mutual follows an average TikTok user has.HardProduct· TikTok
  9. 9Implement LRU Cache.HardCoding· Accenture, Adobe
  10. 10Merge k sorted linked lists.HardCoding· Adobe, Apple
  11. 11Sudoku SolverHardCoding· Adobe, Apple