D


DACL

See discretionary access control list (DACL)

default gateway

The default gateway is the router to which the TCP/IP client will forward packets destined for computers on other networks.

Device Manager

An administrative tool that you can use to manage the devices on your computer. Using Device Manager, you can view and change device properties, update device drivers, configure device settings, and uninstall devices.

DHCP

See Dynamic Host Configuration Protocol (DHCP).

DHCP Relay Agent

A service that picks up DHCP broadcast messages and forwards them to a DHCP server on another network.

digital video disc (DVD)

A type of optical disc storage technology. A digital video disc (DVD) looks like a CD-ROM disc, but it can store greater amounts of data. DVDs are often used to store full-length movies and other multimedia content that require large amounts of storage space.

discretionary access control list (DACL)

A list containing the users and groups, also known as security principals, that have been assigned permissions to a resource and the permissions that have been granted.

Disk Management

The process of creating, managing, and monitoring disks in Windows XP. Also the name of the Windows XP utility used to perform these functions.

Diskpart.exe

A command-line utility used to manage the partitions on your hard disk volumes.

disk partitioning

Disk partitioning is the process of dividing a hard disk into separate sections, with each section functioning as a separate logical storage area.

disk quotas

Quotas that allow you to control the amount of disk space that any individual user can occupy.

distribution server

A distribution sever is a server that can distribute the installation files to many different computers.

DMA channels

Channels that permit hardware devices to bypass the system processor and access system memory directly.

DNS

See Domain Name System (DNS).

domain

A domain is a logical collection of computers that share a centralized database of user accounts and resources.

domain controller

A domain controller is a server that contains a centralized database of user accounts and resources. There must be at least one domain controller (DC) per domain.

Domain Name System (DNS)

A network service designed to perform name resolution for TCP/IP clients.

dotted decimal notation

A method of presenting binary numbers used in TCP/IP as numbers between 0 and 255, primarily for ease of reading.

Driver.cab

A single cabinet file that contains all the drivers shipped with Windows XP. Having access to these drivers prevents the user from having to access the installation CD whenever a new device is added.

driver rollback

A feature in Windows XP that permits you to reinstall (roll back) a previously installed driver. The uninstalled drivers are stored in the system_root\system32\reinstallbackups folder.

driver signing

A process in which device drivers that have passed a series of tests by Microsoft are digitally signed, enabling the operating system to determine if the drivers are acceptable for use.

DSL modem

A type of broadband modem used on digital subscriber lines.

dual-boot configuration

A dual-boot configuration that enables you to have multiple operating systems installed on the same computer.

DualView

An extension of multiple monitor support. It enables two devices connected to the same display adapter to display different output at the same time.

DVD

See digital dideo disc (DVD).

dynamic disk

A physical disk that can be accessed only by Windows 2000 and Windows XP. Dynamic disks provide features that basic disks do not, such as support for volumes that span multiple disks. Dynamic disks use a hidden database to track information about dynamic volumes on the disk and other dynamic disks in the computer. You convert basic disks to dynamic using the Disk Management snap-in or the DiskPart command-line utility. When you convert a basic disk to a dynamic disk, all existing basic volumes become dynamic volumes.

dynamic disk database

A database that tracks the configuration of all dynamic disks in the computer.

Dynamic Host Configuration Protocol (DHCP)

A service that automatically handles requests for TCP/IP configuration information to client systems.




MCDST Self-Paced Training Exam 70-271(c) Supporting Users and Troubleshooting a Micro[... ]ystem
MCDST Self-Paced Training Exam 70-271(c) Supporting Users and Troubleshooting a Micro[... ]ystem
ISBN: N/A
EAN: N/A
Year: 2006
Pages: 195

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