NetComm NB2800 - Manual (Page 45)

Rev.1 - YML648 www.netcomm.com.au
NB2800 Router Page 45
Appendix C: Glossary
10Base-T / 100Base-T
The adaptation of the Ethernet standard for
Local Area Networks (LANs). 10Base-T uses
a twisted pair cable with maximum lengths of
100 meters and transmits data at 10Mbps
maximum. 100Base-T is similar, but uses two
different twisted pair configurations and
transmits at 100Mbps maximum.
Adapter
A device that makes the connection to a
network segment, such as Ethernet and
modem cards.
ADSL
Asymmetric Digital Subscriber Line (ADSL),
as its name indicates, is an asymmetrical data
transmission technology with higher traffic
rate downstream and lower traffic rate
upstream. ADSL technology satisfies the
bandwidth requirements of applications which
demand “asymmetric” traffic, such as web
surfing, file downloads, and telecommuting.
Bandwidth
The amount of data that can be transmitted in
a fixed amount of time.
Browser
A software application used to locate and
display Web pages. Examples include
Netscape Navigator and Microsoft Internet
Explorer.
Communications Protocols
Communication between devices requires they
agree on the format in which the data is to be
transmitted, sent and received. The
communications protocols are a set of rules
that define the data format.
DHCP
DHCP, short for Dynamic Host Configuration
Protocol, is a protocol for assigning dynamic
IP Addresses to devices on a network.
Dynamic Addressing means that a device can
have a different IP Address each time it
connects to the network.
Domain Name
A name that identifies one or more IP
Addresses. For example, the domain name
microsoft.com represents about a dozen IP
Addresses. Domain names are used in URLs
to identify particular Web pages. For example,
in the URL http://www.pcwebopedia.com/
index.html, the domain name is
pcwebopedia.com.
DNS
Short for Domain Name Server, translates
domain names into IP Addresses. To help us
recognize and remember domain names they
are alphabetic in form, however, the Internet
actually runs on numbered IP Addresses.
DNS servers translate domain names into their
respective IP Addresses.
D S S S
Also known as Direct Sequence Spread
Spectrum, it is a radio transmission method
that continuously changes frequencies.
Ethernet
One of the most common Local Area Network
(LAN) standards. Ethernet uses a bus
topology which supports a data transfer rate
of 10 or 100 Mbps.
ESS
ESS is the acronym of Extend Service Set that
consists of several BSS.
Firewall
A security system used to enforce an access
control policy between an organisation’s
networks and the Internet.
IEEE
Short for Institute of Electrical and Electronics
Engineers, an organization best known for
developing standards for the computer and
electronics industry.
Internet
A global network connecting millions of
computers for the exchange of data, news and
opinions.