| A | B |
|---|
| VPN | virtural private network. private networks configured in a public network |
| DNS | domain name service. can be a tcp/ip number or web address |
| Hub | an electric device that connects serveral computers or networks together |
| Repeater | a device that basicaly repeats the information to the next part of cabling |
| Bridge | controlls the flow of info between LAN segments or networks |
| Brouter | a coom 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 | the type of cable connector at the end of twisted pair cable |
| Cat 5 | cosists of fuor twisted pairs of copper wire terminated by RJ-45 connectors |
| BNC Connector | the type of connector used to join coaxial cables to a network |
| Fiber-optic cable | uses a glass core and light to carry data |
| Network adapter | A printed circuit board that plugs into both the clients (personal computers or workstations) and 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 |
| TCP/IP | a network protocol |
| IP address | identifies a computer or device on a TCP/IP network |
| IPX | Internet packet exchange. works at level 3 of the osi model |
| SPX | sequenced packet exchange. transport layer 4 protocol that works with IPX on 3 |
| NetBEUI | NetBIOS Enhanced User Interface. works at the same layer as TCP/IP and IPX/SPX |
