Identify core components: Clients, Load Balancers, API Gateways, Web Servers, and Databases. Walk through the data flow for the primary user story. Step 3: Design Deep Dive (15-20 Minutes)

Chasing elusive "exclusive" PDFs often yields diminishing returns compared to mastering foundational engineering principles. To truly prepare, pivot your strategy toward high-leverage open-source material and real-world system engineering blogs.