When building applications, there's essential to understand the distinct roles of top-level design and LLD . High-level design provides a broader perspective of the application , describing the principal modules and their relationships excluding detailed implementation specifics. In contrast , Low-l

Caching Strategies Start With One Question: How Stale Can This Data Be? Most caching answers jump straight to Redis. The stronger answer starts one step earlier. Caching is a deliberate trade of freshness for speed, so the first thing to establish is how much staleness the product can tolerate. A pr