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Glossary
Channel number
The frequency used for wireless
communications.
Wireless communications are available
only among client computers and
Access Points that use the same
channel.
Client
A single computer on a wireless LAN.
It may be called a client computer as
well.
DHCP (Dynamic Host Configuration
Protocol)
DHCP lets network administrators
centrally manage and automate
assignment of IP addresses with a
network environment.
DNS (Domain Name System)
A system that translates host names
into IP addresses.
Networks that use the TCP/IP protocol,
such as the Internet, use a set of
numbers like 192.168.0.1 (IP address) to
identify a computer.
However, since the IP address is rather
hard to remember, DNS was developed
to allow a name like “www.sony.com”
to identify a computer for convenience.
DNS servers manage these translations
from host names into IP addresses.
Encryption Key
IEEE802.11-compliant security system.
Using the Encryption Key as the
password, only client computers and
Access Points that have the same ID
and password may log onto the same
wireless LAN for file sharing.
LAN (Local Area Network)
A network which is accessible only to
its members, unlike the Internet which
is open to an unlimited number of
people.
A LAN may be built for different
purposes. For example, you can build
an office LAN that is accessible only to
members of the same department or a
home LAN that is accessible only to
family members.
NetBEUI (NetBIOS Extended User
Interface)
NetBEUI is part of the transport layer,
not the NetBIOS programming
interface. NetBEUI cannot be routed, so
it is most appropriate in single subnet
(continuous) network.
Protocol
The formal specifications that define the
procedures for computers to follow
when transmitting and receiving data.
TCP/IP (Transmission Control
Protocol/Internet Protocol)
TCP is a connection-oriented protocol
for establishing reliable, sequenced data
transfer. TCP ensures that data reaches
its destination.
IP assembles and addresses data
packets for transmission to their
network destinations.
WAN (Wide Area Network)
A network that interconnects remote
LANs through the Internet or telephone
lines.
Summary of Contents for NBS-CN110
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