The book utilizes a consistent approach for every interview question: Understand the Problem and Scope: Define features, user scale, and technical constraints. High-Level Design:

5. Metrics Monitoring & Alerting System (e.g., Prometheus, Datadog)

Graph processing, Dijkstra's algorithm modifications (A* search), and tiling architectures to break down global maps into manageable chunks.

While Volume 1 covered fundamentals like URL shorteners and rate limiters, Volume 2 dives into more complex scenarios: