Which of the following components is considered passive equipment in networking?

Passive equipment in networking refers to components that do not require power to perform their primary functions and do not actively process data traffic. Cable distribution frames fit this definition as they serve as a physical connection point for network cabling, facilitating the organization and management of cables without amplifying or altering the signals passing through them.

In contrast, switches and routers are active devices that require power to perform their operations. They manage data traffic, process network protocols, and can create intelligent network paths, making them essential for data delivery across the network. Firewalls also fall into the category of active devices as they filter and control incoming and outgoing network traffic based on predetermined security rules, requiring power to function.

Thus, the distinction lies in the operational nature of the component—cable distribution frames are purely passive and focused on physical connectivity, while the other options involve active data processing and management functions. This makes cable distribution frames the correct answer regarding passive equipment in networking.