Which description best matches the effect of browser caching on page load times?

Which description best matches the effect of browser caching on page load times?

• A. Stored copies of web pages and resources to speed up load times
• B. A security feature that blocks ads
• C. A measure of internet speed
• D. A list of recently visited sites

Answer: (A)

Caching works by storing copies of web pages and their resources on your device so future visits can load faster. When you first open a page, the browser downloads HTML, CSS, JavaScript, images, and other assets and saves them in a cache. On a later visit, if those assets haven’t expired or changed, the browser can reuse the cached copies instead of re-downloading them, reducing network requests and the amount of data that must be transferred. This makes page load times noticeably quicker and improves performance. Cache behavior is managed by headers that set expiration times and validation rules, so if a resource updates or the cache is cleared, the browser pulls fresh copies to keep things up to date. This idea isn’t about ads blocking, measuring your internet speed, or listing recently visited sites, which is why that description doesn’t fit.

Caching works by storing copies of web pages and their resources on your device so future visits can load faster. When you first open a page, the browser downloads HTML, CSS, JavaScript, images, and other assets and saves them in a cache. On a later visit, if those assets haven’t expired or changed, the browser can reuse the cached copies instead of re-downloading them, reducing network requests and the amount of data that must be transferred. This makes page load times noticeably quicker and improves performance. Cache behavior is managed by headers that set expiration times and validation rules, so if a resource updates or the cache is cleared, the browser pulls fresh copies to keep things up to date.

This idea isn’t about ads blocking, measuring your internet speed, or listing recently visited sites, which is why that description doesn’t fit.