How is Bandwidth commonly expressed?

Bandwidth is a measure of the data transfer capacity of a network and is most commonly expressed in bits per second (bps). This unit indicates how many bits of data can be transmitted over a network in one second, effectively quantifying the speed and performance of the connection. Higher bandwidth allows for more data to be transmitted simultaneously, enabling faster downloads, smoother streaming, and overall better performance in data-heavy applications.

The other options do not relate to bandwidth in the same context. Kilometers measure distance, hertz measure frequency (often related to the cycles per second of signals), and volts measure electrical potential. These units serve different purposes and do not convey the concept of data transmission capacity that bandwidth represents.