System Design interview prep

Practice theory and mock interview quizzes to prep for a System Design interview. Two modes: theory drills and interview simulations to prepare for a System Design interview.

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Why does the author start with a single-server setup?

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Because it always scales to millions of users.
Because it is the simplest baseline to understand and evolve.
Because one server is cheaper than the cloud.
Because single-server setups are more secure than distributed ones.