Network administrators can see networks from both physical and logical perspectives.

A community of interest has less of a connection of being in a local area, and should be thought of as a set of arbitrarily located users who share a set of servers, and possibly also communicate via peer-to-peer technologies. Users can share printers and some servers from a workgroup, which usually means they are in the same geographic location and are on the same LAN, whereas a Network Administrator is responsible to keep that network up and running. Users and network administrators typically have different views of their networks. Two such devices are said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Network computer devices that originate, route and terminate the data are called network nodes. The connections (network links) between nodes are established using either cable media or wireless media. In computer networks, networked computing devices pass data to each other along data connections. 'A computer network or data network is a telecommunications network that allows computers to exchange data.

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