Glossary in C#

Generate QR Code in C# Glossary

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L2TP LAN See Layer Two Tunneling Protocol (L2TP). See local area network (LAN). See requester (LAN requester).

Last Known Good configuration A hardware configuration that is available by pressing the F8 key during startup. The Last Known Good configuration contains the configuration information saved after the last successful logon. LAT See local area transport (LAT). layering The coordination of various protocols in a specific architecture that allows the protocols to work together to ensure that the data is prepared, transferred, received, and acted on as intended. Layer Two Tunneling Protocol (L2TP) Its primary purpose is to create an encrypted tunnel through an untrusted network. L2TP is similar to Point-to-Point Tunneling Protocol (PPTP) in that it provides tunneling but not encryption. L2TP provides a secure tunnel by cooperating with other encryption technologies such as IPSec. L2TP functions with IPSec to provide a secure virtual private network solution. line printer A connectivity tool that runs on client systems and is used to print files to a computer running an LPD server. Line Printer Daemon (LPD) A service on the print server that receives documents (print jobs) from Line Printer Remote (LPR) tools running on client systems. link The communication system that connects two local area networks (LANs). Also refers to Equipment that provides the link, including bridges, routers, and gateways.

local area network (LAN) Computers connected in a geographically confined network, such as in the same building, campus, or office park. local area transport (LAT) ration. A nonroutable protocol from Digital Equipment Corpo-

local computer A computer that can be accessed directly without using a communications line or a communications device, such as a network adapter or a modem. local group One type of group account used by Windows XP. Implemented in each local computer s account database, local groups contain user accounts and other global groups that need to have access, rights, and permissions assigned to a resource on a local computer. Local groups cannot contain other local groups. local printer A printer that is connected to a physical port on the print server. local security database A database on a computer running Windows XP Professional that holds local user accounts and groups.

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local user account An account that allows you to log on to a specific computer to access resources on that computer. logical drive A volume created within an extended partition on a basic disk. You can format and assign a drive letter to a logical drive. Only basic disks can contain logical drives. A logical drive cannot span multiple disks. Logical Link Control (LLC) sublayer One of two sublayers created by the IEEE 802 project out of the data-link layer of the OSI reference model. The LLC is the upper sublayer that manages data-link communication and defines the use of logical interface points, called service access points (SAPs), used by computers to transfer information from the LLC sublayer to the upper OSI layers. See also media access control (MAC) sublayer, service access point (SAP). logical printer The software configuration that is created in Windows and displayed in Printers And Faxes. logical structure The administrative structure of Active Directory that includes domains, trees, organizational units, and objects. logon right A user right assigned to a group or an individual user account that controls the way users can log on to a system. logon script Files that can be assigned to user accounts. Typically a batch file, a logon script runs automatically every time the user logs on. It can be used to configure a user s working environment at every logon, and it allows an administrator to influence a user s environment without managing all aspects of it. A logon script can be assigned to one or more user accounts. loopback address LPD A special reserved IP address that represents the local computer.

See Line Printer Daemon (LPD).

marker An archive attribute that marks a file as having been backed up. During incremental or differential backups, markers are used to determine whether a file has changed since the last backup. Master Boot Record (MBR) The first sector on a hard disk, this data structure starts the process of booting the computer. The MBR contains the partition table for the disk and a small amount of executable code called the master boot code. MB Mb See megabyte (MB). See megabit (Mb). See millions of bits per second (Mbps).