Rosewill RNX-N4 User Manual
Page 82

Wireless Adapter
RNX-N4 User Manual
82
Information that has been translated into binary so that it can be processed or moved to 
another device 
Data Encryption Standard
Uses a randomly selected 56-bit key that must be known by both the sender and the 
receiver when information is exchanged 
Database
Organizes information so that it can be managed updated, as well as easily accessed by 
users or applications. 
Data-Link layer
The second layer of the OSI model. Controls the movement of data on the physical link of a 
network 
DB-25
A 25 ping male connector for attaching External modems or RS-232 serial devices
DB-9
A 9 pin connector for RS-232 connections
dBd
Decibels related to dipole antenna
dBi
Decibels relative to isotropic radiator
dBm
Decibels relative to one milliwatt
Decrypt
To unscramble an encrypted message back into plain text
Default
A predetermined value or setting that is used by a program when no user input has been 
entered for this value or setting 
Demilitarized zone
DMZ: A single computer or group of computers that can be accessed by both users on the 
Internet as well as users on the Local Network, but that is not protected by the same 
security as the Local Network. 
DHCP
Dynamic Host Configuration Protocol: Used to automatically assign IP addresses from a 
predefined pool of addresses to computers or devices that request them 
Digital certificate:
An electronic method of providing credentials to a server in order to have access to it or a 
network 
Direct Sequence Spread Spectrum
DSSS: Modulation technique used by 802.11b wireless devices
DMZ
"Demilitarized Zone". A computer that logically sits in a "no-mans land" between the LAN 
and the WAN. The DMZ computer trades some of the protection of the router's security 
mechanisms for the convenience of being directly addressable from the Internet. 
DNS
Domain Name System: Translates Domain Names to IP addresses
Domain name
A name that is associated with an IP address
Download
To send a request from one computer to another and have the file transmitted back to the 
requesting computer 
DSL
Digital Subscriber Line. High bandwidth Internet connection over telephone lines
Duplex
Sending and Receiving data transmissions at the sane time
Dynamic DNS service
