The prompt
Estimate daily read queries for a social feed serving 50M MAU with 20 minutes/day of usage. State your structure and the assumption that would 5x the result.
Concepts this question tests
How to practice it in PrepOS
PrepOS's adaptive queue surfaces this question when you calibrate to a matching target level and your weakest concepts overlap with what it tests. Open the practice simulator and select the round type to start a rep with this prompt.
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