顧客は、インターネットからのページ全体のダウンロード回数を減らすために、よく使用するコンテンツをキャッシュしたいと考えています。ネットワーク管理者は、次のうちどれを推奨すべきでしょうか?
正解:A
Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):
A proxy server (specifically a caching HTTP/HTTPS proxy) stores frequently accessed web objects and serves them locally to clients, reducing external bandwidth consumption and improving response times.
* B. Load balancer distributes traffic across servers but does not inherently cache internet content.
* C. Open relay is a misconfigured mail server that permits unauthorized relaying-this is a security issue, not a caching solution.
* D. Code repository (e.g., for source control) isn't related to web content caching.
References (CompTIA Network+ N10-009):
* Domain: Network Standards, Protocols, and Implementations - Application-layer services (HTTP
/HTTPS), proxies and caching behavior, performance optimization.