Which statement best defines a network?

A network is best defined as a collection of connected computers and devices. This definition captures the essence of what a network is—specifically, it emphasizes the connections that enable communication and resource sharing among various devices. When computers, printers, servers, and other devices are linked together, they form a network that allows for data exchange and collaboration.

In a network, these connections can facilitate sharing resources such as files, internet access, and hardware devices. The interaction among the devices can occur over wired or wireless connections and is fundamental to the functioning of both local area networks (LANs) and wide area networks (WANs).

The other options do not encapsulate the broader concept of a network as effectively. For example, while a collection of databases and a group of web servers may involve connected elements, they do not represent the comprehensive nature of inter-device connectivity within a network, which can include a variety of device types beyond just servers or databases. A software application for communication, while used within networks, does not define what a network is; it is merely one of the functionalities that can be executed over a network.