Which network topology uses a central hub to connect multiple devices?

The star topology is characterized by a central hub or switch that serves as a focal point for connecting multiple devices in the network. In this configuration, each device (also known as a node) is directly connected to the hub, enabling them to communicate with one another through this central point. This structure offers several advantages, including simplified troubleshooting and the ability to easily add or remove devices without impacting the entire network.

In contrast, other topologies operate differently: in a ring topology, devices are connected in a closed loop with data traveling in one direction; a mesh topology comprises multiple connections between devices for redundancy and reliability; and a bus topology uses a single backbone cable to which all devices are connected. Thus, when the question specifies a central hub connecting multiple devices, the star topology is the appropriate answer.