(3-5 mins): Ask clarifying questions. Define functional requirements (what it does) and non-functional requirements (scale, latency, availability). Step 2: Propose High-Level Design
You will study in places without Wi-Fi: airplanes, coffee shops, or your commuter train. YouTube fails here. Grokking fails here (requires login). alex lu system design interview pdf better
Alex walked out of the building feeling light. He hadn't been perfect, but he had been better . He hadn't let the PDFs wash over him passively; he had forced the knowledge to fit a framework in his head. (3-5 mins): Ask clarifying questions