The correct answer to the following question will be "Server".
Explanation:
Any device with a network connection is a host, but only hosts which accept other device connections (climates) are Servers.
All servers were hosts, but the servers aren't all hosts.
Each host network is a node, however not all network nodes are a host. Networking hardware such as modems, hubs, and network switches are not necessarily network addresses allocated (except for administrative purposes sometimes).
