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Chapter 17#3a

QuestionAnswer
Internet service provider (ISP) A commercial group that provides Internet access for a monthly fee; AOL, Earthlink, and Comcast are large ISPs.
intranet A private network that uses the TCP/IP protocols.
IP address A 32-bit address consisting of four numbers separated by periods, used to uniquely identify a device on a network that uses TCP/IP protocols. The first numbers identify the network; the last numbers identify a host.
line speed In relation to analog communication, the range of frequencies that a communications channel or cable can carry.In general use, the term refers to the volume of data that can travel on a bus or over a cable stated in bits per second.
MAC (Media Access Control) address A 48-bit hardware address unique to each NIC card or onboard network controller and assigned by the manufacturer. The address is often printed on the adapter as hexadecimal numbers. An example is 00 00 0C 08 2F 35.
multicasting A process in which a message is sent by one host to multiple hosts, such as when a video conference is broadcast to several hosts on the Internet.
name resolution The process of associating a character-based computer name to an IP address.
NAT (Network Address Translation) A protocol used to convert private IP addresses on a LAN to a public IP address before a data packet is sent over the Internet.
NetBEUI (NetBIOS Extended User Interface) A fast, proprietary, and outdated Microsoft networking protocol used only by Windows-based systems, and limited to LANs because it does not support routing.
NetBIOS (Network Basic Input/Output System) An API protocol used by some applications to communicate over a NetBEUI network. NetBIOS has been replaced by Windows Sockets over a TCP/IP network.
network adapter An expansion card that plugs into a computer’s motherboard and provides a port on the back of the card to connect a PC to a network. Also called a network adapter.
LAN (local area network) A computer network that covers only a small area, usually within one building.
Created by: Jay.
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