CertiGuide to Network+  9  Glossary

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Autoexec.bat

A series of prerecorded keystrokes, stored in a file with a special extension .BAT - Autoexec.bat is a reserved filename, for DOS, OS/2 and Windows Versions 1.0 through Me. If it exists, it is automatically executed as part of the power up sequence. Windows NT versions (including Windows 2000 and XP) utilize autoexec.nt, while NETWARE uses autoexec.ncf.

A basic security function of cryptography. Authentication verifies the identity of the entities that communicate over the network. For example, the process that verifies the identity of a user who logs on to a computer either locally, at a computer’s keyboard, or remotely, through a network connection.

A header that provides integrity, authentication, and anti-replay for the entire packet (both the IP header and the data payload carried in the packet).

In the Domain Name System (DNS), the use of zones by DNS servers to register and resolve a DNS domain name. When a DNS server is configured to host a zone, it is authoritative for names within that zone. DNS servers are granted authority based on information stored in the zone.

An unattended setup using one or more of several methods such as Remote Installation Services, bootable CD, and Sysprep.

A method of automatically storing network files on a user’s hard disk drive whenever a file is open so the files can be accessed when the user is not connected to the network.

A feature of Windows 2000 TCP/IP that automatically configures a unique IP address from the range 169.254.0.1 to 169.254.255.254 and a subnet mask of 255.255.0.0 when the TCP/IP protocol is configured for dynamic addressing and a Dynamic Host Configuration Protocol (DHCP) Server is not available.

A state in which media can be allocated for use by applications.

A type of counter that measures a value over time and displays the average of the last two measurements over some other factor (for example, PhysicalDisk\Avg. Disk Bytes/Transfer).

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