How do you determine if a network cable is functioning properly?

To determine if a network cable is functioning properly, checking for physical damage and testing it with a different device is essential because these steps directly address the cable's operational integrity. Physical damage such as cuts, kinks, or frayed wires can impair connectivity, making it vital to inspect the cable visually. Additionally, testing the cable with a different device can help rule out issues related to the original device. If the cable works with another device, it is likely functioning correctly; if not, it indicates that there may be a problem with the cable itself.

Other options, while they may seem relevant, do not directly assess the cable's functionality. Aesthetic appeal is irrelevant to performance, measuring length against specifications doesn't reflect whether a cable is operational, and using the cable across multiple networks may provide context for network issues but doesn’t isolate the cable's performance itself. Thus, the most effective way to evaluate the cable's functionality involves inspecting it for damage and testing it in various environments.