Cisco CISCO1401 Software Guide - Page 275

Glossary DNS DSSS E EAP Ethernet F file server firmware Domain Name System server. A server that translates text names into IP addresses. The server maintains a database of host alphanumeric names and their corresponding IP addresses. Direct sequence spread spectrum. A type of spread spectrum radio transmission that spreads its signal continuously over a wide frequency band. Extensible Authentication Protocol. An optional IEEE 802.1x security feature ideal for organizations with a large user base and access to an EAP-enabled Remote Authentication Dial-In User Service (RADIUS) server. The most widely used wired local area network. Ethernet uses carrier sense multiple access (CSMA) to allow computers to share a network and operates at 10, 100, or 1000 Mbps, depending on the physical layer used. A repository for files so that a local area network can share files, mail, and programs. Software that is programmed on a memory chip. G gateway GHz A device that connects two otherwise incompatible networks. Gigahertz. One billion cycles per second. A unit of measure for frequency. I IEEE infrastructure IP address IP subnet mask isotropic Institute of Electrical and Electronic Engineers. A professional society serving electrical engineers through its publications, conferences, and standards development activities. The body responsible for the Ethernet 802.3 and wireless LAN 802.11 specifications. The wired Ethernet network. The Internet Protocol (IP) address of a station. The number used to identify the IP subnetwork, indicating whether the IP address can be recognized on the LAN or if it must be reached through a gateway. This number is expressed in a form similar to an IP address; for example: 255.255.255.0. An antenna that radiates its signal in a spherical pattern. OL-4059-01 Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide GL-3