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Glossary
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802.11
A family of specifications for wireless local area networks (WLANs) developed by a working group of the
Institute of Electrical and Electronics Engineers (IEEE).
A
Access Control List
ACL. This is a database of network devices that are allowed to access resources on the network.
Access Point
AP. Device that allows wireless clients to connect to it and access the network
ActiveX
A Microsoft specification for the interaction of software components.
Address Resolution Protocol
ARP. Used to map MAC addresses to IP addresses so that conversions can be made in both directions.
Ad-hoc network
Peer-to-Peer network between wireless clients
ADSL
Asymmetric Digital Subscriber Line
Advanced Encryption Standard
AES. Government encryption standard
Alphanumeric
Characters A-Z and 0-9
Antenna
Used to transmit and receive RF signals.
AppleTalk
A set of Local Area Network protocols developed by Apple for their computer systems
AppleTalk Address Resolution Protocol
AARP. Used to map the MAC addresses of Apple computers to their AppleTalk network addresses, so that
conversions can be made in both directions.
Application layer
7th Layer of the OSI model. Provides services to applications to ensure that they can communicate properly
with other applications on a network.
ASCII
American Standard Code for Information Interchange. This system of characters is most commonly used for
text files
Attenuation
The loss in strength of digital and analog signals. The loss is greater when the signal is being transmitted over
long distances.
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