CertiGuide to Network+  9  Glossary

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Auto-Answer. A feature found in analog modems, which can be configured to Automatically Answer an incoming call and negotiate a connection. AA = 1 auto answer is on, AA = 0 auto answer is off.

1. Electrical power in which polarity (direction of flow) osculates, typically in a sine wave. In North America, the polarity switches at 60 times per second. In many European countries the rate is 50 times per second. The value is measured in Hertz (Hz).

2. Actual Cost. All costs sustained associated to overhead inside planned value and earned value in associated work during a time period. Refer to Earned value, planned value.

A type of expansion slot that is solely for video cards. Designed by Intel and supported by Windows 98/Me/W2K/XP, and Linux, AGP is a dedicated bus that provides fast, high-quality video and graphics performance.

Access control is featured in many operating systems to determine what resources are or are not available to a user based upon guidelines created.

The average time it takes to move a read/write head from a location and read data at a new location.

An entry in an access control list (ACL) containing the security ID (SID) for a user or group and an access mask that specifies which operations by the user or group are allowed, denied, or audited.

ACL is a list of security protections that apply to an entire object, a set of the object’s properties, or an individual property of an object. There are two types of access control lists: discretionary and system.

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