Which of the following best describes the function of a KVM switch?

The function of a KVM (Keyboard, Video, Mouse) switch is accurately described by the option that highlights its ability to allow sharing of keyboard, video, and mouse between computers. This device enables a user to control multiple computers using a single keyboard, monitor, and mouse setup, eliminating the need for separate input devices for each computer.

This functionality is particularly useful in environments where space is limited, or when managing several servers or computers is required, such as in server rooms or with IT professionals who need to monitor and control different systems frequently. A KVM switch helps streamline workspace and increases efficiency by allowing easy toggling between different equipment without the need to physically connect or disconnect devices.

The other options do not correctly capture the primary function of a KVM switch: connecting multiple devices to a single monitor does not encompass its capabilities since it involves only video, but not keyboard and mouse sharing; enhancing internet speed is unrelated to a KVM's purpose; and managing network traffic refers to network devices like switches and routers, not KVMs, which focus solely on control over computer peripherals.