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Appendix H: Glossary
Broadband Firewall Router with 4-Port Switch/VPN Endpoint
Appendix H: Glossary
Adapter
- A device that adds network functionality to your PC.
Bit
- A binary digit.
Boot
- To start a device and cause it to start executing instructions.
Bridge
- A device that interconnects different networks together.
Broadband
- An always-on, fast Internet connection.
Browser
- An application program that provides a way to look at and interact with all the information on the
World Wide Web.
Buffer
- A shared or assigned memory area that is used to support and coordinate different computing and
networking activities so one isn't held up by the other.
Cable Modem
- A device that connects a computer to the cable television network, which in turn connects to the
Internet.
DDNS
(
D
ynamic
D
omain
N
ame
S
ystem) - Allows the hosting of a website, FTP server, or e-mail server with a
fixed domain name (e.g., www.xyz.com) and a dynamic IP address.
DHCP
(
D
ynamic
H
ost
C
onfiguration
P
rotocol) - A networking protocol that allows administrators to assign
temporary IP addresses to network computers by "leasing" an IP address to a user for a limited amount of time,
instead of assigning permanent IP addresses.
DMZ
(
D
emilitarized
Z
one) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from
the Internet.
DNS
(
D
omain
N
ame
S
erver) - The IP address of your ISP's server, which translates the names of websites into IP
addresses.
Domain
- A specific name for a network of computers.
Download
- To receive a file transmitted over a network.