•
802.11b
802.11b works by making radio transmissions in the 2.4 Ghz frequency range support a
maximum bandwidth of 11 Mbps.
•
Infrastructure Mode
A client setting providing connectivity to an Access Point. As compared to
Ad
-
Hoc
Mode where
PCs communicate directly with each other clients set in infrastructure Mode all pass data through a
central Access Point. The Access Point not only mediates
Wireless
network traffic in the immediate
neighborhood but also pro-vides communication with the wired network. An integrated
wireless
and
wireless
and wired LAN is called an Infrastructure configuration. Infrastructure is applicable to
enterprise scale for
wireless
access to central database, or
wireless
application for mobile workers.
•
Roaming
The ability to use a
wireless
device and be able to move from one access point's range to another
without losing the connection.
•
RTS/CTS Threshold Value
Should remain at its default setting of 2,347. A preamble is a signal used to synchronize the
transmission timing between two or more systems. A series
of transmission pulses is sent before the data to indicate that
"someone is about transmit data".
This ensures that systems receiving the information correctly when the data transmission starts.
•
Shared Key
Is when both the sender and recipient share a secret key. Both units use this key for an extended
length of time, sometimes indefinitely. Any eavesdropper that discovers the key may decipher all
packets until the key is changed.
•
Signal Strength
The signal level indicates the strength of the signal as received at the
wireless
network interface.
•
SSID (Service Set Identifier)
Is the unique name shared among all points in a
wireless
network. The SSID must be identical
for all points in the network. It is case sensitive and must not exceed 32 characters.
•
WEP (Wired Equivalent Privacy)
A data privacy mechanism based on a 40 bit shared key algorithm, as described in the IEEE
802 .11 standard. The optional cryptographic confidentiality algorithm specified by IEEE 802.11
used to provide data confidentiality that is subjectively equivalent to the confidentiality of a wired
LAN medium that does not employ cryptographic techniques to enhance privacy.
•
LAN
– Local Area Network
Local Area Networking
(LAN)
is the term used when connecting several computers together over
a small area such as a building or group of buildings. LAN's can be connected over large areas. A
collection of LAN's connected over a large area is called a Wide Area Network
(WAN)
.
A LAN consists of multiple computers connected to each other. There are many types of media
that can connect computers together. The most common media is CAT5 cable
(UTP or STP
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