When building software , it is vital to appreciate the contrasting roles of high-level design and LLD . HLD provides a broader view of the application , illustrating the major components and their connections excluding granular execution specifics. Conversely , Low-level design goes into the technic

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