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The Throttle Wall

A hard Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Python
Difficulty
hard
Seniority
mid, senior, staff

Interview Prompt

Our API gateway needs to throttle abusive clients without blocking legitimate traffic. Build a RateLimiter class that tracks requests per client and enforces a maximum number of allowed requests within a sliding time window. Denied requests should not count toward the limit.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision