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
Clear all

6 questions

  1. 1How would you build TinyURL?HardSystem designTechnical· Google, Meta
  2. 2Design APIs for Facebook live commenting.HardSystem designTechnical· Meta
  3. 3Design a system like YouTube.HardSystem designTechnical· Meta, Snowflake
  4. 4Design a voting system.HardTechnical· Meta
  5. 5How would you launch reactions for Facebook?HardDataProduct· Meta
  6. 6Design the system architecture for WhatsApp.HardSystem designTechnical· Meta, WhatsApp