What characterizes a ring network?

A ring network is characterized by each device being connected to exactly two other devices, which creates a closed loop or circle. In this configuration, data travels in one direction (or sometimes both directions, depending on the specific design) around the ring. Each device in a ring network has a direct connection to its two neighboring devices, allowing it to receive and send data to adjacent devices while forwarding it along the network.

This structure contrasts with other networking formats. For instance, a central hub as cited in another option describes a star topology, where devices connect to a single, central point, rather than to each other. The sharing of a single communication line refers to bus networks, where all devices access the same communication pathway. Lastly, wireless communication pertains to a completely different type of network setup, which can involve various topologies but does not define the ring configuration.

Understanding this distinction is important, as the ring structure affects the network's speed, performance, and reliability, including potential issues with data collisions or the effects of one device's failure on the entire network.