CertiGuide to Network+  9  Glossary

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Change journal

A feature new to Windows 2000 that tracks changes to NTFS volumes, including additions, deletions, and modifications. The change journal exists on the volume as a sparse file.

The robotic element of an online library unit.

The characters that are available within a system.

An object that is the immediate subordinate of another object in a hierarchy. A child object can have only one immediate superior, or parent, object. In Active Directory, the schema determines what classes of objects can be child objects of what other classes of objects. Depending on its class, a child object can also be the parent of other objects.

Clustered Class C addresses (supernetting) for medium sized needs, which requires later version gateway protocols (I.E. BGP-4, OSPF.)

A system service that handles interaction between network management applications and providers of local or remote data or system events.

Text that has been encrypted using an encryption key. Ciphertext is meaningless to anyone who does not have the decryption key.

A connection which is dedicated, for at least the life of the session. Data packets arrive at the same order they were sent. Calling someone (and having them answer) over telephone line is a typical example of a switched circuit connection.

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