User`s guide

Internet Server User’s Guide
Glossary 69
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 Carrier Sense Multiple Access with Colli-
sion Detection; 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
DHCP Dynamic Host Configuration Protocol.
DHCP is a protocol that allows IP ad-
dresses to be dynamically assigned as
computers are turned on.
DNS Domain Name Service. DNS entries on
internet DNS servers map site names (also