mediumDesignScenarioMidSeniorStaff
You have been asking clarifying questions for eleven minutes and have not drawn anything. When did that stop helping you?
Clarifying questions stop helping at the first one whose answer would not change what you draw. Past that point you are moving risk onto the interviewer, not reducing it. Turn every remaining question into a stated assumption, draw a first diagram, and ask the rest against that diagram.
5 min readUpdated 2026-10-09
Answer
Short answer
Clarifying questions stop helping at the first question whose answer would not change your diagram. Every question after that point transfers a decision to the interviewer instead of informing one. At eleven minutes in a system design interview you should stop asking. Write the open questions down as assumptions, draw a first version, and ask anything left against that drawing.
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Likely follow-ups
- The interviewer answers every question with "your call". What is that telling you, and what do you write down?
- Which of your eleven minutes of questions would you still ask if you were given only three minutes?
- You commit to an assumption, and at minute thirty the interviewer reveals it was wrong. How much of the diagram survives?
- How would you tell an interviewer who wants extended requirements gathering from one who wants a design?
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