When building systems , there's vital to comprehend the separate roles of top-level design and detailed design. HLD provides a larger perspective of the application , outlining the core components and their connections omitting specific realization specifics. On the

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 t