Which statement describes a potential drawback of browser caching?

Which statement describes a potential drawback of browser caching?

• A. Content may be stale if the cache is not refreshed.
• B. It always shows the most up-to-date content automatically.
• C. It stores executables on the hard drive.
• D. It prevents any network requests.

Answer: (A)

Caching lets your browser keep copies of resources like HTML, CSS, and images so pages load faster on subsequent visits. The flip side is that those stored copies can become outdated if the original content changes. If the cache isn’t refreshed or the cached item isn’t revalidated, you may end up viewing stale content instead of the latest version. This is why the potential drawback is tied to content staying the same long enough to outlive its fresh version, or not being rechecked with the server in time. In practice, servers guide this with cache-control headers, expiration times, and validation tokens (like ETags) so the browser knows when a cached resource should be re-fetched. The statement that caching always shows the most up-to-date content isn’t accurate, because cached copies can be outdated. Caches don’t store executables as a primary purpose, and they don’t completely stop network requests—they just reduce them and may allow offline access in some cases, while still needing to fetch resources that aren’t cached or that have expired.

Caching lets your browser keep copies of resources like HTML, CSS, and images so pages load faster on subsequent visits. The flip side is that those stored copies can become outdated if the original content changes. If the cache isn’t refreshed or the cached item isn’t revalidated, you may end up viewing stale content instead of the latest version. This is why the potential drawback is tied to content staying the same long enough to outlive its fresh version, or not being rechecked with the server in time.

In practice, servers guide this with cache-control headers, expiration times, and validation tokens (like ETags) so the browser knows when a cached resource should be re-fetched.

The statement that caching always shows the most up-to-date content isn’t accurate, because cached copies can be outdated. Caches don’t store executables as a primary purpose, and they don’t completely stop network requests—they just reduce them and may allow offline access in some cases, while still needing to fetch resources that aren’t cached or that have expired.