Which term describes an intermediary server used to access resources securely?

• A. Proxy Server
• B. VPN
• C. Federated Identity Management
• D. Mobile Device Compatibility

Answer: (A)

An intermediary server that sits between your device and the resources you access, and forwards requests on your behalf, is designed to mediate and control access. This setup can provide security through content filtering, access control, and auditing, as well as privacy by masking the client’s details and efficiency through caching frequently requested resources. In a school or library network, this helps enforce safe browsing policies and manage bandwidth while still letting users reach the needed resources. A VPN, by contrast, creates a secure tunnel into a network rather than acting as a go-between for individual resource requests; Federated Identity Management deals with recognizing users across organizations, and Mobile Device Compatibility is about whether devices work with systems—neither describes an intermediary for accessing resources. So the term that fits best is a proxy server.