In a star network, how are devices connected?

In a star network, all devices are connected directly to a central hub or switch. This hub acts as a central point of communication, allowing devices to send and receive data through it. The structure of the star network simplifies the process of data management and enhances fault tolerance; if one connection fails, the rest of the network can continue to operate independently.

This configuration also makes it easy to add or remove devices without disrupting the entire network, as each device has its connection to the hub rather than relying on interconnections with other devices.

The other options describe different types of network topologies or connection methods that do not apply to a star network. For instance, a circular manner refers to a ring topology, while a series of connections suggests a bus topology. Wireless connections are not inherently tied to the star configuration unless a wireless hub is used, which is not the defining characteristic of a star network.