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driver A program that provides a software interface to a hardware device. Drivers are written for the specific devices they control, but they present a common software interface to the com- puter’s operating system, allowing all devices of a similar type to be controlled as if they were the same. driver rollback An option that allows you to restore a previously used driver after Mcsa Exams a driver has been upgraded. This option provides an easy mechanism for restoring a driver if the upgraded driver does not work properly. driver signing A digital imprint that is Microsoft’s way of guaranteeing that a driver has been tested and will work with the computer. DRM See Digital Rights Management (DRM) dual-booting The process of allowing a computer to boot two operating systems. DVD See Digital Video Disc. dynamic disk A Windows Vista disk-storage technique. A dynamic disk is divided into dynamic volumes. Dynamic volumes cannot contain partitions or logical drives, and they are not accessible through DOS. You can size or resize a dynamic disk without restarting Win- dows Vista. Dynamic disks are accessible only to Windows 2000, Windows XP, Windows Server 2003, and Windows Vista computers. Dynamic Host Configuration Protocol (DHCP) A method of automatically assigning IP addresses to client computers on a network. dynamic storage A Windows Vista disk-storage system that is configured as volumes. Win- dows Vista dynamic storage supports simple volumes, spanned volumes, and striped volumes. effective rights The rights that a user actually has to a file or folder. To determine a user’s effective rights, add all of the permissions that have been allowed through the user’s assign- ments based on that user’s username and group associations. Then subtract any permissions that have been denied the user through the username or group associations. EFS See Encrypting File System. Enable Boot Logging option A Windows Vista Advanced Boot Options menu item that is used to create a Comptia Security log file that tracks the loading of drivers and services. Enable Low-Resolution Video (640 × 480) option A Windows Vista Advanced Boot Options menu item that loads a standard VGA driver at 640 × 480 resolution without starting the computer in Safe Mode. Encrypting File System (EFS) The Windows Vista technology used to store encrypted files on NTFS partitions. Encrypted files add an extra layer of security to the file system. encryption The process of translating data into code that is not easily accessible to increase security. Once data has been encrypted, a user must have a password or key to decrypt the data. Error event An Event Viewer event type that indicates the occurrence of an error, such as a driver failing to load.
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