What type of network is specifically designed for publicly accessible services?

A demilitarized zone (DMZ) is specifically designed to enhance security while providing access to publicly accessible services. This configuration acts as a buffer zone between the internal network and the public internet.

In a DMZ, servers that need to be accessed externally, such as web servers, email servers, or DNS servers, are placed in this area to reduce the risk of attackers gaining direct access to the internal network where sensitive data resides. This isolation helps to protect the internal network from potential threats while allowing necessary interactions with the outside world.

The use of a DMZ is a key security measure in network design, ensuring that even if a public-facing service is compromised, the attacker's access can be limited to the DMZ, thereby safeguarding the more vital components of the network. In contrast, other options such as a perimeter network or wired LAN do not specifically address the need for public access alongside robust security. A perimeter network can be confused with a DMZ but isn't commonly used in standardized networking terminology, while a wired LAN typically pertains to internal connectivity and doesn't imply any configuration for public services. A cable modem is a device used for connecting to the internet rather than a network type designed for specific security and accessibility purposes.