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How does a social feed decide what to show me first?

Tech Understanding Medium 20 min mock MetaLinkedIn

How to approach it

  • Start with one user doing one action.
  • What sits between the two phones?
  • What happens when something fails?

Practise it out loud

Run a 20-minute mock of this question with an AI interviewer. Ask clarifying questions, work through the case by voice or typing, and get a report that scores each part of your answer from what you said.

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More tech understanding questions

  • How does a message get from my phone to my friend's on a messaging app?
  • How does a maps app estimate my arrival time?
  • Explain what an API is to someone who has never written code.
  • How would you reduce the storage cost of an email service?
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