VTD (Virtual Tape Drive)an emulation of a physical transport in the virtual tape storage subsystem (VTSS) that looks like a physical tape transport to the host.
VTOC (Volume Table Of Contents)the data set on a DASD volume that specifies the location of all non-SMS data sets on that volume. See VVDS.
VTOL-UAVVertical Takeoff and Landing Unmanned Aerial Vehicle.
VTS (Virtual Tape Servers or Systems)comprise: a robotic library to perform automated tape mounts for backend requirements; real tape transports that read and write virtual volumes from…
VTSS (Virtual Tape Storage Subsystem)a DASD buffer containing virtual tape volumes (VTV) and virtual tape drives (VTD). The VTSS is a StorageTek RAID 6 hardware device. See VTD and VTV.
VTV (Virtual Tape Volume)a DASD buffer that appears to the operating system as a real tape volume. Data can be written to and read from the VTV, and the VTV can be migrated to and…
VulnerabilityWeakness in an information system, system security procedures, internal controls, or implementation that could be exploited or triggered by a threat…
Vulnerability AssessmentFormal description and evaluation of the vulnerabilities in an information system.
VVDS (VSAM Volume Data Set)the part of the ICF catalog that resides on each DASD volume and contains information on the SMS-managed data sets on that volume. See VTOC.
VVIRFVerification and Validation Information Request Form. 319
VW-1Flammability rating established by Underwriters Laboratories for wires and cables that pass a specially designed vertical flame test formerly designated…
W3C (World Wide Web Consortium)The World Wide Web Consortium is an independent work group formed in 1994 thatprovides standards like XML.
WAAWarm Air Advection - the advection (movement) of warm air into a region.
WAE (Wireless Application Environment)The Wireless Application Environment (WAE) provides a application framework for small devices. WAE leverages other technologies such as WAP, WTP, and WSP.
WaferA thin sheet of semiconductor (photovoltaic material) made by cutting it from a single crystal or ingot.
WAFLWrite Anywhere File Layout. A patented file system designed exclusively for NetApp appliances to optimize write performance.
WAFL checkData ONTAP utility to repair filer volumes.
WAFL credential cache (WCC)A temporary in-memory database that keeps mappings from UNIX UIDs to CIFS credentials.
WAISAcronym for Wide Area Information Servers. A distributed text searching system that uses the protocol standard ANS Z39.
Wales, JimmyCo-founder of the popular Wikipedia. Weblog (see Blog)
WAP (Wireless Application Protocol)An open, global specification that enables wireless devices to access and interact with information and services. [Exchange 2003]
WAP GatewayA WAP Gateway acts as a bridge allowing WAP devices to communicate with other networks (namely the Internet).
WAR fileWeb application archive file. A JAR archive that contains a Web module.
War GameA simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an…
WardA district used in a general law city. Similar to a single-member district, except that in Texas, most municipalities that have a ward system elect two…
WarezA term widely used by hackers to denote illegally copied and distributed commercial software from which all copy protection has been removed.
WargameA simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an…
Wargame 2000Title of MDA program for development of a state-of-the-art simulation tool at the JNTF for use in CONOPS validation, missile defense program design…
WarheadA weapon, usually thermonuclear, contained as the payload of a missile.
Warhead MatingThe act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section.
Warhead SectionA completely assembled warhead including appropriate skin sections and related components.
warm restartA sequence of operations that is performed to reset a previously running system, after an unintentional shutdown. Synonym warm start. 2.
Warm SiteAn alternative facility that has the equipment and resources available to recover business functions in the event of a disaster See also cold site and hot…
Warner exemptionA statutory exemption pertaining to the acquisition of telecommunications systems that meet the exclusionary criteria of the Warner Amendment, Public Law…
WarningThe fourth of five Early Warning System components consisting of the processes (including the media) and equipment necessary to make the public aware of…
Warning of AttackA warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future.
Warning OrderA preliminary notice of an order or action that is to follow.
warrantA certificate giving the holder the right to purchase a security (such as a stock) at a set price within a specified period of time.
WARSIM 2000Warfighter Simulation 2000 (US Army term).
Wartime Reserve Modes (WARM)Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1)…
WASPWide-body Airborne Surveillance Platform. A modified DC-10. 320
Wastage (Max)The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense.
Watch Condition (WATCHCON)Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON.
watch expressionAn expression which, when its value changes, causes a breakpoint in the Perl debugger.
watch fileA text file that records all nongraphic input and output during an ARC/INFO session. Watch files can be edited and converted to AML programs.
WatchlistA term sometimes referred to as open-set identification that describes one of the three tasks that biometric systems perform.
watermarkA translucent mark in paper incorporated during manufacture for purposes of identification or protection of a document A mark that is imprinted on a…
wave impedanceAt a point in an electromagnetic wave, the ratio of the electric field strength to the magnetic field strength.
wave trapA device used to exclude unwanted frequency components, such as noise or other interference, of a wave.
waveformThe representation of a signal as a plot of amplitude versus time.
wavefrontThe surface defined by the locus of points that have the same phase, i.e., have the same path length from the source.
waveguideA material medium that confines and guides a propagating electromagnetic wave. Note 1: In the microwave regime, a waveguide normally consists of a hollow…
waveguide scatteringScattering (other than material scattering) that is attributable to variations of geometry and refractive index profile of an optical fiber.
WavelengthThe distance between one peak or crest of a wave (of light, heat, or other energy) and the next corresponding peak or crest.
wavelength stabilityOf an optical source during a specified period, the maximum deviation of the peak wavelength from its mean value.
wavelength-division multiplexing (WDM)In optical fiber communications, any technique by which two or more optical signals having different wavelengths may be simultaneously transmitted in the…
Wavelet Scalar Quantization (WSQ)An FBI-specified compression standard algorithm that is used for the exchange of fingerprints within the criminal justice community.
WCC(1) See Wing Control Center. (2) Weapons Control Computer.
WCCPAn open protocol that when installed on Cisco Routers enables them to transparently redirect client browser Web requests from their target Web servers to…