ISC2 Systems Security Certified Practitioner (SSCP) Practice Question
A firm sends all outbound HTTP/HTTPS traffic through a forward proxy in the DMZ. The security team expects the device to (1) hide internal IPs behind the proxy's public address, (2) cache popular web content, (3) block URL categories like gambling, and (4) perform real-time signature inspection of every packet for network-layer exploits. Which capability is not native to a standard web proxy?
Performing real-time, signature-based packet inspection for network-layer exploits.
Blocking user requests based on predefined URL categories.
Caching frequently requested web objects to save bandwidth.
Replacing client IP addresses with the proxy's public IP.
A forward proxy primarily operates at the application layer. It naturally replaces client IP addresses with its own, can cache web objects, and often enforces URL-based policies. Continuous, signature-driven inspection of each packet for network-layer exploits is the role of an IDS/IPS, not a core proxy feature, so capability 4 is outside a proxy's native functions.
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ISC2 Systems Security Certified Practitioner (SSCP)
Network and Communication Security
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