Networking Terms - D

datagram

dB, dBm (decibel)

DeadAIM

DHCP - Dynamic Host Configuration Protocol

DDNS - Dynamic DNS (Domain Name System)
DDNS is a service that maps Internet domain names to IP addresses. DDNS serves a similar, but not quite the same, purpose to DNS.

dialup

DivX

DMZ - De-Militarized Zone

DoS - Denial of Service

download

DNS - Domain Name System
The Domain Name System (DNS) translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to IP addresses of the Web servers hosting those sites.

dongle

DSL modem

DWDM - Dense Wavelength Divison Multiplexing