What does the term 'network host' refer to?

The term 'network host' refers specifically to any device that connects to a network and has a unique IP address. This definition encompasses a wide range of devices, including computers, servers, printers, and even smartphones, as long as they can receive and transmit data over the network.

Identifying a device as a network host implies that it can communicate with other devices on the same network, whether it is serving data, accessing resources, or enabling connectivity for clients. Therefore, the broad definition captured in the correct answer rightly includes all devices within the network rather than limiting the term to just servers or clients.

Other options are more restrictive and do not represent the full scope of what constitutes a network host. For instance, limiting it to servers excludes numerous devices that also play essential roles in network operations. Focusing solely on client software disregards hardware aspects essential for hosting functions. Finally, mentioning only devices accessing the cloud omits many wired or local devices that participate in network communications but are not directly cloud-based. Thus, the broad interpretation of 'network host' ensures clarity in understanding the diverse range of devices involved in networking.