Over the last decades, we have witnessed tremendous growth in the size of networks. This growth has occurred in the geographic spread of the network, as well as an exponential rise in the number of...

Directory Service is a tool for locating, managing, and organizing network resources, which can include volumes, folders, files, printers, users, groups, and other objects. A directory service is...

Digital Modem is any type of modem used for synchronous transmission of data over circuit-switched digital lines. Digital modems are not used for changing analog signals into digital signals because...

Drain Wire is an uninsulated wire included in shielded cabling that runs the length of some coaxial cabling or shielded twisted-pair (STP) cabling. The drain wire makes contact with the foil sleeve...

Duplex is a telecommunications term referring to bidirectional communication. In full-duplex communication, both stations send and receive at the same time, and usually, two communication channels...

Defense Messaging System, also known as DMS, is a program established by the U.S. Undersecretary of Defense (Acquisition) to develop an integrated, global messaging system for transferring classified...