Define the term "bandwidth" in the context of network performance.

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The term "bandwidth" in the context of network performance refers specifically to the maximum rate of data transfer that can occur across a network path. This measurement indicates how much data can be transmitted in a given amount of time, typically expressed in bits per second (bps). Higher bandwidth means that more data can be sent simultaneously, leading to faster network speeds and improved performance, especially important for applications requiring significant data transfer, such as video streaming or file downloading.

In contrast, the other options do not align with the definition of bandwidth. For example, while the delay in data transmission addresses latency, it does not capture the concept of maximum data transfer capability. Similarly, the physical space occupied by network cables pertains to the physical characteristics of the network infrastructure rather than performance metrics, and the number of devices connected to a network refers to the network's capacity and utilization rather than its throughput capacity. Thus, the correct definition of bandwidth as the maximum rate of data transfer encompasses the key attribute of network performance.

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