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Multiple Choice

A DMZ is used to expose servers to the internet while protecting the private LAN.

A DMZ provides a buffer between the public internet and the private LAN, hosting publicly accessible servers in a separate network segment and protecting the internal network behind one or more firewalls. This arrangement allows outward-facing services to be reached by users on the internet while restricting direct access to the private LAN, so even if a public server is compromised, attackers don’t automatically reach internal resources. The other options describe security tools or services, not the dedicated zone that isolates public-facing systems from the core network. Firewalls control traffic, proxies handle requests on behalf of clients, and VPN gateways enable remote access; they can operate with a DMZ, but they don’t define the concept of exposing servers while shielding the private network.

A DMZ provides a buffer between the public internet and the private LAN, hosting publicly accessible servers in a separate network segment and protecting the internal network behind one or more firewalls. This arrangement allows outward-facing services to be reached by users on the internet while restricting direct access to the private LAN, so even if a public server is compromised, attackers don’t automatically reach internal resources. The other options describe security tools or services, not the dedicated zone that isolates public-facing systems from the core network. Firewalls control traffic, proxies handle requests on behalf of clients, and VPN gateways enable remote access; they can operate with a DMZ, but they don’t define the concept of exposing servers while shielding the private network.