What defines a star network topology?

A star network topology is defined by a centralized structure that connects all nodes through a single hub. In this design, each device on the network communicates through the central hub, which acts as a repeater for data flow. This configuration offers several advantages, such as easy management of the network, straightforward troubleshooting, and the ability to easily add or remove devices without disrupting the entire network.

The central hub or switch plays a crucial role, as it facilitates communication between all connected devices. If one connection fails, it only affects the related node while the rest of the network remains operational. This centralized approach enhances reliability and simplifies the network architecture, making it a popular choice in various networking environments.