What is classified as a managed device in networking?

A managed device in networking refers to hardware that can be monitored, configured, and maintained through network management protocols and interfaces. Firewalls are specifically designed to perform security functions in a network, controlling incoming and outgoing traffic based on predetermined security rules. Because they can be accessed remotely for configuration changes, logging, and monitoring performance, they fit the definition of a managed device.

In contrast, options such as a desktop computer, a network cable, and a server room do not possess the same level of management capabilities. A desktop computer may be part of a network, but it does not inherently include management features typical of managed devices. A network cable is simply a passive medium for transmission, lacking any management or processing capabilities. Lastly, a server room refers to a physical space where servers are housed; it doesn’t constitute a device with management features. Therefore, firewalls are the quintessential example of managed devices due to their active role in network security management.