What type of device is used to manage traffic on networks?

In networking, devices play crucial roles in managing and directing traffic, ensuring that data moves efficiently between computers and other devices on a network. Each of the options listed serves unique functions in network traffic management.

A bridge connects two or more network segments to make them function as a single network. It can filter and forward data based on the MAC addresses of devices, reducing traffic on individual segments by filtering out unnecessary data.

A router, on the other hand, directs data packets between different networks. It uses IP addresses to determine the best path for data to travel, allowing multiple networks, including home networks and the internet, to communicate effectively. Routers are essential for managing traffic between these networks and ensuring data reaches its destination.

A switch operates within a single network and connects devices within that network. It uses MAC addresses to forward data only to the intended device rather than broadcasting it to all connected devices. This greatly enhances network efficiency and reduces congestion.

Since all three devices—bridges, routers, and switches—play important roles in managing traffic on networks, it is accurate to state that all of the aforementioned devices are involved in this function. This comprehensive understanding of how each device contributes to traffic management helps illustrate the correct choice.