Internet Server User’s Guide
Glossary
52
B
Bandwidth
The range of frequencies available across a
communications channel; in one sense, the
“size” of the communications channel.
C
Category 3, 4, 5
Communication cabling standards refer-
ring to the quality of the transmission
medium and whether or not the cable in-
cludes transmission shielding.
Collision
Simultaneous data transmission on a net-
work medium, resulting in a garbled (and
unreadable) transmission. See
“CSMA/CD.”
Collision Domain
A section of a network isolated from other
sections by a switch, bridge, or hub that
detects and resolves collisions locally so
that there is less impact on the entire net-
work.
CSMA/CD
C
arrier
S
ense
M
ultiple
A
ccess with
C
olli-
sion
D
etection; a network communications
protocol in which each transmission source
(i.e., station, server, switch, etc.) monitors
the main data channel for traffic before
and during transmission, postponing
transmission when the data channel is in
use.
D
