Which proxy-related component stores copies of frequently accessed web pages to improve performance?

Which proxy-related component stores copies of frequently accessed web pages to improve performance?

• A. Non-transparent proxy
• B. Transparent proxy
• C. Caching engines
• D. Reverse proxy

Answer: (C)

Caching is the process of storing copies of frequently requested web pages so subsequent requests can be served quickly from local storage rather than fetching from the origin server. The component that implements this in proxy systems is the caching engine, which manages what gets cached, where it is kept, and when it should be refreshed. By serving cached content, it reduces latency and conserves bandwidth while still honoring cache-control headers and validation checks. The other proxy types describe access methods or deployment roles rather than the storage mechanism. A transparent proxy always sits between the user and the internet without requiring configuration, while a non-transparent proxy requires client configuration; both describe how traffic is directed, not the storage function. A reverse proxy sits in front of backend servers and can provide caching as a feature, but the specific element responsible for storing and serving cached pages is the caching engine.

Caching is the process of storing copies of frequently requested web pages so subsequent requests can be served quickly from local storage rather than fetching from the origin server. The component that implements this in proxy systems is the caching engine, which manages what gets cached, where it is kept, and when it should be refreshed. By serving cached content, it reduces latency and conserves bandwidth while still honoring cache-control headers and validation checks. The other proxy types describe access methods or deployment roles rather than the storage mechanism. A transparent proxy always sits between the user and the internet without requiring configuration, while a non-transparent proxy requires client configuration; both describe how traffic is directed, not the storage function. A reverse proxy sits in front of backend servers and can provide caching as a feature, but the specific element responsible for storing and serving cached pages is the caching engine.