DMT
Discrete Multi Tone. Shape modulation multicarrier which divides spectrum of frequency sub-channels. For theADSLThe spectrum between 0 Hz and 1.104 MHz is divided into 256 sub-channels spaced 4.3125 kHz.
DNA
Network architecture developed by Digital Equipment Corporation (DEC).
December Phase V is very close OSI.
DNS
Each station has a IP address clean. However, users do not want to work with addresses digital such 194.153.205.26 but with station names or addresses more explicit (called FQDN addresses) style www.future-sciences.com.
So, TCP / IP can associate names in everyday language to numerical addresses through a system called DNS (Domain Name Service).
We call resolution domain names (or address resolution) correlation between addresses IP and the associated domain name.
Dolby
U.S. company that specializes in audio signal processing. The standard developed by Dolby Labs concerning noise reduction for tape recorders and encoding sound to the cinema.
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