| A | B |
|---|
| VPN | A private network that is configured within a public network. |
| DNS | Maps a TCP/IP number like 172.16.4.245 to a website, like www.bored.com. |
| Hub | A hub is an electronic device that connects several computers or networks together. |
| Repeater | Regenerates and amplifies the data bits in order to maintain a strong signal that might otherwise deterirate over a long distance. |
| Bridge | Controls the flow of information between LAN segments or networks, even if they are different types of networks using different communication protocols. |
| Brouter | A communication device that functions as both a bridge and a router. |
| Gateway | A protocol converter that supports communication between networks that use different protocols. |
| RJ-45 | Connector with eight wires that is used to connect computers onto LANs that use twisted pair cabling. |
| Cat 5 | Type of cabling that consists of four twisted pairs of copper wire terminated by RJ-45 connectors. |
| BNC Connector | Used to join coaxial cables like RG-58A/U into a network. |
| Fiber-optic cable | Type of cabling that carries light and is no thicker then a human hair. |
| Network adapter | A printed circuit board that plugs into both the clients and the servers and controls the exchange of data between them. |
| Half Duplex | The transmission of data in both directions, but only one direction at a time. |
| Full Duplex | Transmitting and receiving simultaneously. In pure digital networks, this is achieved with two pairs of wires. In analog networks or in digital networks using carriers, it is achieved by dividing the bandwidth of the line into two frequencies, one for sending, the other for receiving. |
| TCP/IP | TCP provides transport functions, which ensures that the total amount of bytes sent is received correctly at the other end. |
| IP Address | The address of a computer attached to a TCP/IP network. Every client and server station must have a unique IP address. |
| IPX | A NetWare communications protocol used to route messages from one node to another. IPX packets include network addresses and can be routed from one network to another. |
| SPX | The usual Transport Layer 4 protocol that works with IPX in Layer 3 to guarantee that the packets sent out by IPX can be accurately assembled into the entire message by the destination node. |
| NetBEUI | This is supported automatically by all versions of Windows. It is at the same OSI layer (Transport) as the TCP/IP and IPX/SPX protocols. |
