It protects the computer network from unauthorized access.

A computer network that extends over a large geographical area and connects individual users or multiple LANs.

The following choices are examples of networking devices, EXCEPT:

Modem is a contraction of the terms ___________.

It is a device that enables a computer to connect to the network.

It is used to divide larger networks into smaller sections. They do this by sitting between two physical network segments and managing the flow of data between the two.

A network device that connects LAN components with identical protocols. It does not perform packet filtering or addressing functions; it just send data packets to all connected devices.

A device which receives a signal and retransmits it at a higher level or higher power so that the signal can cover longer distances.

These are electronic devices which are necessary to allow communication and interaction between devices on a network.