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Root-cause a Wi-Fi chip that stops after 30 minutes
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A Wi-Fi chip runs tests and stops sending signal after about 30 minutes. Explain how you would find the root cause. Interviewers are looking for a methodical investigation that considers the physical side, not only the test software: does the timing point to heat, power or resource exhaustion, what you would measure and log, and how you would confirm the cause.
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