{
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 "description": "Practice the engineering estimates that come up in system-design interviews. FermiReps gives you focused drills in QPS, storage, bandwidth, and capacity so you can work on turning large numbers into useful estimates.\n\nSHOW YOUR REASONING\nWork through a question in your own words. Break it into smaller parts, state your assumptions, track units, and use rough arithmetic to reach an estimate.\n\nPRACTICE ENGINEERING QUANTITIES\nConvert daily traffic into requests per second. Estimate how much data a system stores or transfers. Work through capacity questions and compare the scale of your answer with the scenario.\n\nGET FEEDBACK ON YOUR WORK\nSubmit your reasoning for AI-generated grading and feedback. Review a reference answer and worked solution to compare approaches. The focus is estimation: sensible rounding and justified assumptions matter alongside units and arithmetic.\n\nREVISIT YOUR ATTEMPTS\nUse your history to review previous answers, scores, and feedback. See topic scores as you complete exercises.\n\nSET YOUR PRACTICE RHYTHM\nChoose your training cadence and active hours, pause scheduled training, or start another exercise when you are ready. Enable optional iPhone notifications for new assignments and reminders.\n\nFermiReps focuses on estimation practice for system-design interviews. It does not provide a complete system-design course or coding-interview preparation.\n\nAn account and internet connection are required. Sign in with an email link or choose a password. Before using the practice features, you must consent to sharing submitted answers and exercise content with OpenAI for grading. AI feedback can contain errors.\n\nOperated by GRACENT TECH LLC.\nSupport: https://fermireps.com/support\nPrivacy: https://fermireps.com/privacy\nContact: david@gracent.tech",
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