Which category of cable supports a bandwidth of 100 Mbps at a distance of 100 meters?

The category of cable that supports a bandwidth of 100 Mbps at a distance of 100 meters is CAT 5. This type of cable was commonly used in Ethernet networks to transmit data at 10/100 Mbps (Fast Ethernet) and is still relevant for basic networking tasks. CAT 5 cables are constructed with twisted pairs of copper wires, which help reduce interference and maintain signal integrity.

While CAT 5e and higher categories such as CAT 6 and CAT 6a can also support 100 Mbps at 100 meters, they offer increased performance capabilities that exceed the 100 Mbps threshold. For instance, CAT 5e can support gigabit speeds (up to 1 Gbps) over the same distance, and CAT 6 can support even higher data rates and bandwidths. Therefore, CAT 5 is the appropriate choice for supporting the specified bandwidth at the designated distance without exceeding the requirements.