| A | B |
| VPN | a private network that is configured within a public network |
| DNS | service will make a TCP/IP number, 177.16.4.245, to a more easily remembered name, www.interswift.com |
| hub | a central connecting device in a network that joins communication lines together in a star configuration |
| repeater | a communications device that implifies or regenerates the data signal in order to extend the transmission distance |
| bridge | an electronic device that controls the flow of information between LAN segments or networks |
| brouter | a communication that performs protocol conversion between different types of networks or applications |
| gateway | a computer that performs protocol conversion between different types of networks or applications |
| RJ-45 | connector with eight wires that is used to connect computers onto local area networks that use twisted- pair cabling |
| Cat 5 | consists of four twisted pairs of copper wire terminated by RJ-45 connectors |
| BNC connector | the type of connector most commonly used to join coax cables in a network |
| fiber-optic cable | a cable that transfers pulses of light instead of electrical signals |
| network adapter | a printed circuit board that plugs into both the clients and servers and controls the exchange of data between them |
| half duplex | communication type in which communication can occur in two directions, but only in one direction at a time |
| full duplex | commication type in which communication can occur in two directions at the same time |
| TCP/IP | protocol suite used to connect hosts on the internet and other networks |
| IP address | a unique 4-byte number that identifies a node on a TCP/IP network |
| IPX | a netware communications protocol used to route messages from one node to another |
| SPX | the netware communications protocol used to control the transport of messages across a network |
| netBEUI | the default networking protocol for the windows desktop operating system |