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Apendix B: Glossary
Corinex Wireless to Powerline AP
time interval. For 802.11, Wired Equivalent Privacy (WEP) encryption is
optional. For WPA, the encryption using TKIP is required. TKIP replaces WEP
with a new encryption algorithm that is stronger than the WEP algorithm
but that uses the calculation facilities presented on existing wireless devices
to perform encryption operations.
Topology
- A network topology is a logical characterization of how the
network devices and their respective distances are interconnected. The
most common network devices include hubs, switches, routers, and
gateways. Most large networks contain several levels of interconnection.
Edge backbone and wide-area connections, are the most common and
important ones.
Upgrade
- The replacement of existing software or firmware with a newer
version.
Upload
- To send a file transmitted over a network. In a communications
session, upload means transmit, and download means receive.
URL (Uniform Resource Locator)
- The address that defines the route to
a file on the web or any other Internet facility. URLs are typed into the
browser to access Web pages, and URLs are embedded within the pages
themselves to provide the hypertext links to other pages.
UTP
- Unshielded twisted pair is the most common kind of copper
telephone wiring. Twisted pair is a common copper wire that connects
home and many business computers to the telephone company. To reduce
the crosstalk or electromagnetic induction between pairs of wires, two
insulated copper wires are twisted around each other. Each signal on
twisted pair requires both wires. Since some telephone sets or desktop
locations require multiple connections, twisted pair is sometimes installed
in two or more pairs, all within a single cable.
Virtual Server
- Multiple servers that appear as one server, or one system
image, to the operating system or network administration.
WEP
(
W
ired
E
quivalent
P
rivacy) - A data privacy mechanism based on a
64 bit, 128 bit, or 256 bit shared key algorithm, as described in the IEEE
802.11 standard.
Wide Area Network (WAN)
- A network that encompasses interconnectivity
between devices over a wide geographic area. Such networks require
public rights-of way and operate over long distances.
