Glossary 79
DNS Domain Name Service. DNS entries on
internet DNS servers map site names (also
called, “URLs”) to their actual IP addresses.
E
Ethernet A particular type of LAN described in a
standard established by the IEEE (802.3),
with 10Mbps data transmission.
F
Fast Ethernet An extension of Ethernet LAN (defined in
standard 802.3u) to allow 100Mbps trans-
missions.
H
Hub The central device in a star-topology LAN
used to connect each station to the network.
I
IEEE Institute of Electrical and Electronics Engi-
neers, an accredited professional group of
scientists and engineers who help set stan-
dards for LAN communications technology.
In-band Communications with a network device us-
ing the network medium itself. Contrast
with out-of-band.
Internet server A device designed to provide internet access
to multiple users at multiple stations but
through a single access point (both a single
ISP and only one public domain IP).
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