How does a hub differ from a switch?

A hub operates as a basic networking device that transmits data to all devices connected within its network segment, making it a shared medium. When data is received by the hub from one device, it simply broadcasts that data to all other devices on the network. This behavior can lead to collisions and increased network traffic because all devices receive all transmitted data, regardless of whether it is intended for them.

This broadcasting nature of a hub is essential to understand in contrast to a switch. A switch, on the other hand, has more intelligent data management capabilities. It learns the MAC addresses of devices connected to it and forwards data specifically to the targeted device rather than to all devices on the network, thus optimizing network performance by reducing unnecessary data transmission.

In summary, the choice that states the hub transmits data to all devices on the network accurately describes its functioning within networking environments, highlighting its limitations in comparison to more advanced devices like switches.