How is bandwidth defined in networking?

Bandwidth in networking is defined as the maximum data transfer rate of a network or internet connection. It refers to the amount of data that can be transmitted over a connection in a given amount of time, typically measured in bits per second (bps). This parameter plays a crucial role in determining the speed and performance of a network, as it directly influences how quickly data can be sent and received.

When evaluating network performance, bandwidth is a key metric because it affects how many users can efficiently share the network and the quality of services such as video streaming, online gaming, and large file transfers. Higher bandwidth allows for more data to flow through the network simultaneously, resulting in faster load times and a smoother user experience.

The other choices do not accurately represent the concept of bandwidth. The number of devices connected to a network reflects network capacity and utilization, but not bandwidth itself. The amount of data stored on a server pertains to data storage capabilities, not the speed of data transmission. The total distance that data can travel relates more to network topology and the physical limitations of the communication medium rather than to the definition of bandwidth.