Glossary:

ATIS Telecom Glossary

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exe

1. (or . exe)
1. A filename extension identifying executable code.
2. An identifying extension for a form of self-extracting archive. [Bahorsky]

executive state

One of several states in which an information system (IS) may operate, and the only one in which certain privileged instructions may be executed. Such privileged instructions cannot be executed when the system is operating in other (e.g., user) states. Synonym supervisor state. [INFOSEC-99]

exempted addressee

An organization, activity, or person included in the collective address group of a message and deemed by the message originator as having no need for the information in the message.
Note: Exempted addressees may be explicitly excluded from the collective address group for the particular message to which the exemption applies.

exercise key

[A] key used exclusively to safeguard communications transmitted over the air during military or organized civil training exercises. [INFOSEC-99]

exhaustive attack

A trial-and-error attempt to violate computer security by systematically attempting to use a very large number of possible passwords or keys. [After 2382-pt.8] Synonym [loosely] brute-force attack.

expander

A device that restores the dynamic range of a compressed signal to its original dynamic range.

expansion

The restoration of the dynamic range of a compressed signal to its original dynamic range.

expansion capability

The inherent limit for increasing the capacity of a system beyond its installed capacity.

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