domain IDA unique identifier for a domain, analogous to a process ID in an operating system.
domain nameThe conventional Internet name for a network or computer system, which name consists of a sequence of two or more groups of characters separated by…
Domain Name Server (DNS)A Domain Name Server is a computer designated to holding a list of domain names and their corresponding IP addresses.
domain name service (DNS)A service to map fully qualified domain names to IP addresses and vice versa. [2382-pt.35]
Domain Name System (DNS)Hierarchical distributed database used for name/address translation and client-server rendezvous.
Domain Naming MasterThe master service that controls and authorizes domain naming within the forest.
Domain Specific ContentsEvery object that is defined solely within the scope of a particular domain.
Domain TreeIn DNS, the inverted hierarchical tree structure that is used to index domain names.
DomainKeys Identified Mail (DKIM)A standard that email senders use to sign their messages. ISPs use those signatures to verify that messages are legitimate.
DomainPrepA tool that is used during deployment to create the groups and permissions that are required for Exchange servers to read and modify user attributes.
domainsdomU and Domains are both domains. Domains run on the Hypervisor. The term domains has a similar meaning to Virtual machines and the two are technically…
domestic fixed public serviceA fixed service, the stations of which are open to public correspondence, for radiocommunications originating and terminating solely at points all of…
domestic public radio servicesThe land mobile and domestic fixed public services, the stations of which are open to public correspondence. [47CFR]
dominant modeIn a waveguide that can support more than one propagation mode, the mode that propagates with the minimum degradation, i.e.
Dominate1. An implementation-defined relation between the values of MAC labels or Information Labels which satisfies partial order algebraic property [POSIX.6]. 2.
Domino Document Manager cabinetA Domino Document Manager database that is used to organize documents. Cabinets hold Domino databases.
Domino domainA network of clients and servers whose users, servers, connections, and access control information are described in a Domino Directory.
Domino serverA computer that runs the Domino Server program and stores Notes databases.
Domino Server programThe program that supports the connection between clients and the server and also manages a set of server tasks, which are programs that either perform…
Domino Server Setup programThe cross-platform wizard that guides you through the setup options for a Domino server after the program files are installed on the system.
domudomU refers to the guest operating system which run on the host system (Domains).
donated materialDocumentary material that has been transferred into NARA's legal custody via a deed of gift from a person or non-Federal organization.
Donation buttonAn HTML-coded button to provide an easy and secure way for US-based, IRS-certified 501(c)3 nonprofit organizations to solicit donations.
DonorIn a solar photovoltaic device, an n-type dopant, such as phosphorus, that puts an additional electron into an energy level very near the conduction band…
Doorway PagesPages designed to rank for highly targeted search queries, typically designed to redirect searchers to a page with other advertisements.
DOP(1) Degree of Protection. (2) Depot Overhaul Point (ILS term).
DOPAADescription of Proposed Actions and Alternative (environmental term).
DopantA chemical element (impurity) added in small amounts to an otherwise pure semiconductor material to modify the electrical properties of the material.
Doppler Effectapparent change in frequency of a wave due to the relative motion of the source and observer.
doppler shiftThe degree of observed change in frequency (or wavelength) of a wave due to the doppler effect.
DOSDisk Operating System ( TelComm /Computer term).
DoS (denial of service attack)An attempt by a malicious (or unwitting) user, process, or system to prevent legitimate users from accessing a resource (usually a network service) by…
DOS attributesAccess classifications associated with all DOS files. Typical attributes are read only, archive, hidden, and system.
dotted decimal notationThe notation used to represent the four byte values of an IP address. Each byte is represented as a value between 0 and 255, for instance 129.12.0.1.
DoubleUp System of Betting - A betting system whereby bets are doubled after a loss in hopes of recouping the previous loss.
double bufferingA graphics technique used to smooth animation. The next version of an image is drawn `behind the scenes' and then displayed in its entirety when the…
double length keyA cryptographic key having a length of 112 bits plus 16 parity bits. [After X9.24]
double modulationModulation in which (a) a subcarrier is modulated with an information-bearing signal and (b) the resulting modulated subcarrier is then used to modulate…
Double Opt-InA user has subscribed for a newsletter or other email marketing messages by explicitly requesting it and confirming the email address to be her own.
double precisionRefers to a high level of coordinate accuracy based on the possible number of significant digits that can be stored for each coordinate.
double resolution still imageA still image transmitted in the standardized video stream encoded to twice the horizontal and twice the vertical resolution as the previous motion video…
double-ended queue (dequeue)A queue in which the contents may be changed by adding or removing items at either end.
double-ended synchronizationFor two connected exchanges in a communications network, a synchronization control scheme in which the phase error signals used to control the clock at…
double-frequency shift keying (DFSK)Frequency-shift keying in which two telegraph signals are multiplexed and transmitted simultaneously by frequency shifting among four frequencies.
doubly clad fiberA single-mode fiber that has two claddings. Note 1: Each cladding has a refractive index that is lower than that of the core.
Down SelectTo reduce the number of contractors working on a program by eliminating one or more for the next phase.
down-converterA device for performing frequency translation in such a manner that the output frequencies are lower in the spectrum than the input frequencies.
downcastA cast towards an object's dynamic type - that is, `down' the inheritance hierarchy.
Downgrade1. Change the security class of an object to one which does not dominate the original [CESG]. 2.
downlink1. A data link from a satellite or other spacecraft to a terrestrial terminal. 2. A data link from an airborne platform to a ground-based terminal.
downloadTo transfer a copy of a file residing on a remote computer to a user's computer.
Download MessageAllows you to save a copy of an email message to your own computer which will be stored as a distinct text file.
downstreamThe region extending in a 3' direction from a gene.
downtimeThe interval during which a functional unit is inoperable.
DPAA type of power of attorney. A power of attorney is a legal document that gives one person (such as a relative, lawyer, or friend) the authority to make…
DRDiminishing Returns. Used to describe something that reduces slowly over time on consecutive repetitions of the same action.
DR (delivery receipt)A notice confirming that a message was delivered to its intended recipient. [Exchange 5.5]
DR (Disaster Recovery)In virtual environments the setup of new systems and recovery of operating systems are much simpler than with standard recovery methods.
DraftA signed, written order by which one party (the drawer) instructs another party (the drawee) to pay a specified sum to a third party (the payee), at sight…
draggingThe act of modifying all or part of the display on a monitor by selecting some object and moving the pointing device such that the displayed object moves…
DRAMDynamic Random Access Memory, a memory technology which is periodically refreshed or updated as opposed to static RAM chips which do not require…
drapeA perspective or panoramic rendering of two-dimensional features superimposed on a surface.
Draw-down CurveA method used to encapsulate the overall performance of a BMD system that plots the probability of survival on the vertical axis versus the number of…
Drawdown CurveA method used to encapsulate the overall performance of a BMD system that plots the probability of survival on the vertical axis versus the number of…