Which firewall filters web content requests such as URLs and domain names?

Which firewall filters web content requests such as URLs and domain names?

• A. VPN Gateway
• B. Proxy Servers
• C. Context Aware Application Firewall
• D. IDS

Answer: (B)

Proxy servers filter web content requests by examining the destination URL and domain names. Because the proxy sits between clients and the web, it can see exactly what site or resource a user is trying to reach and enforce policies—allowing or blocking requests, logging access, and sometimes rewriting or caching traffic. This makes them the most direct and reliable mechanism for controlling which sites or pages users can access based on URL or domain. Other options don’t fit as neatly: a VPN gateway focuses on secure tunneling and confidentiality rather than content filtering; an IDS watches for signs of intrusions but doesn’t block traffic by URL or domain by default; a context-aware application firewall analyzes how applications behave and may filter more granularly, but URL/domain filtering is most commonly handled by a proxy.

Proxy servers filter web content requests by examining the destination URL and domain names. Because the proxy sits between clients and the web, it can see exactly what site or resource a user is trying to reach and enforce policies—allowing or blocking requests, logging access, and sometimes rewriting or caching traffic. This makes them the most direct and reliable mechanism for controlling which sites or pages users can access based on URL or domain.

Other options don’t fit as neatly: a VPN gateway focuses on secure tunneling and confidentiality rather than content filtering; an IDS watches for signs of intrusions but doesn’t block traffic by URL or domain by default; a context-aware application firewall analyzes how applications behave and may filter more granularly, but URL/domain filtering is most commonly handled by a proxy.