you access the world-wide web, a DNS server translates the URL displayed on the browser to the destination website IP address. The DNS lookup table is a distributed Internet database; no one DNS server lists all domain name to IP address matches.
Domain Name
A unique name, such as motorola.com, that maps to an IP address. Domain names are typically much easier to remember than are IP addresses. See DNS.
Download
To copy a file from one computer to another. You can use the
Internet to download files from a server to a computer.
Driver
Software that enables a computer to interact with a network or other device. For example, there are drivers for printers, monitors, graphics adapters, modems, Ethernet, USB, HPNA, and many others.
DSL
Digital Subscriber Line
DSSS
Direct-Sequence Spread Spectrum. DSSS is a transmission technology used in WLAN transmissions where a data signal at the sending station is combined with a higher data rate bit sequence, or chipping code, that divides the user data according to a spreading ratio. The chipping code is a redundant bit pattern for each bit that is transmitted, which increases the signal's resistance to interference. If one or more bits in the pattern are damaged during transmission, the original data can be recovered due to the redundancy of the transmission.
Dynamic IP Address
An IP address that is temporarily leased to a host by a DHCP server. The opposite of Static IP Address.
E
ESS
An Extended Service Set (ESS) is a set of two or more BSSs that form a single subnetwork. See also BSS.
Ethernet
The most widely used LAN type, also known as IEEE 802.3. The most common Ethernet networks are 10Base-T, which provide transmission speeds up to 10 Mbps, usually over unshielded, twisted-pair wire terminated with RJ-45 connectors. Fast Ethernet (100Base-T) provides speeds up to 100 Mbps. “Base” means “baseband technology” and “T” means “twisted pair cable.”’
