D


data recovery agent

Users with file encryption certificates who have been designated the right to decrypt users' encrypted files in case the user's file encryption certificate is damaged or lost.



decryption

Unscrambling the data in an encrypted file through use of an algorithm so that the file can be read.



default gateway

The term applied to the router that leads to other networks.



Defrag.exe

Also known as Disk Defragmenter, a command-line utility that rearranges files contiguously, recapturing and reorganizing free space in the volume. Defrag optimizes the performance of a computer.



device driver

The specialized software component of an operating system that interfaces with a particular hardware component.



differential backup

A type of Windows backup that backs up all files and folders that have changed since the last normal backup. It does not remove the archive bit; consequently this backup type accumulates all changes that have occurred since the last normal backup. Should you need to restore data, restore the last normal backup plus the last differential backup.



discretionary access control list (DACL)

A list of permitted and denied rights that is applied to a resource.



disk quotas

A system of space limits for users on a volume formatted with NTFS. This is set up to ensure that all users have available space on which to store their files, preventing one user from using all the available space.



domain

A group of networked computers that share a common address. A domain is also the foundation of Active Directory, in which all networking objects are stored.



Domain Name System (DNS)

A hierarchical naming system that is contained in a distributed database. DNS provides name resolution for IP addresses and DNS names.



driver signing

The digital signature that Microsoft adds to a third-party device driver to validate its usage.



dual-boot

The capability to boot two or more operating systems on a single computer, created by installing each operating system on a different disk partition.



DualView

The configuration of two monitors on a laptop, using the laptop's LCD and an external monitor.



Dynamic Host Configuration Protocol (DHCP)

The protocol in the TCP/IP protocol stack that negotiates the lease of an IP address from a DHCP server.



dynamic disk

A disk partitioning scheme supported by Windows 2000 and Windows XP that contains dynamic volumes.



dynamic volume

A volume on a dynamic disk that can be spanned, mirrored, striped, or striped with parity.





Exam Prep 2. Windows XP Professional
MCSA/MCSE 70-270 Exam Prep 2: Windows XP Professional
ISBN: 0789733633
EAN: 2147483647
Year: 2004
Pages: 193

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