| A | B |
|---|
| VPN | A private network that is configured within a network. |
| DNS (Domain Name Service) | This service will map a TCP/IP number to a more easily remembered name. |
| Hub | A electronic device that connects several computers or networks together. |
| Repeater (active hub) | A communications device that amplifies or regenerates the data signal in order to extend the transmission distance |
| Bridge | Controls flow of information between LAN segments or networks, even if they are different. |
| Brouter | A communication device that functions as both a bridge and a router. |
| Gateway | A protocol converter that supports communications between networks that use different protocols. |
| RJ-45 | Connector with eight wires that is used to connect computers to a Local Area Network that uses twisted pair cabling. |
| Cat 5 | Type of cabling that 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 through a glass tube instead of electric signals through a wire. |
| Network Adapter | A printed circuit board that plugs into both the clients and servers and controls the exhange of data between them. |
| Half Duplex | A communications type in which communication can occur in two directions, but only in one direction at a time. |
| Full duplex | Communications type in which communications can occur in two directions at the same time. |
| TCP/IP | The protocol suite that is used to connect hosts on the internet and other networks. |
| IP Address | A unique 4-bit number that identifies a node on a TCP/IP network. |
| IPX | A NetWare communications protocol used to route one node to another. |
| SPX | The NetWare communications protocol uses to control the transport of messages across a network. |
| NetBEUI | The default networking protocol for the Windows desktop OS. |
