- D channel
See delta channel (D channel).
Pronounced "demon," a program that acts like a terminate-and-stay-resident (TSR) application by loading into memory and lurking there for any trigger that calls on its services.
- data communication equipment (DCE)
Equipment that provides clocking to DTE equipment. DCE equipment starts at the CSU/DSU and is defined as a connection all the way to the providers network.
- Data Encryption Standard (DES)
A deprecated cryptographic block cipher that falls to brute-force attacks due to its short 56-bit key. Triple DES (3DES), which was widely used before AES became a standard, is a block cipher formed from the DES cipher by using it three times.
- data frame
A frame is the Protocol Data Unit encapsulation ...