User's Manual

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.

DoS

DoS is the abbreviation for Denial of Service. This occurs when a computer or network is

overwhelmed to the point that it can no longer function normally. For example, a hacker may

use fake IP addresses to accumulate numerous connections to flood the server he wants to

attack.

DDNS

DDNS is an acronym for Dynamic Domain Name Service. It helps map the domain name of a

host which has a dynamic public IP address to the IP address that is allocated each time the ISP

assigns a new IP address.

DNS

Short for Domain Name Server, DNS translates domain names into IP Addresses and help us

recognize and remember domain names as they are alphabetic in form. The Internet actually

runs on numbered IP Addresses. DNS servers translate domain names into their respective IP

Addresses.

DSSS

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) protocols. Ethernet uses a bus topology

which supports a data transfer rate of 10 Mbps.

ESS

ESS is an acronym for Extend Service Set that consists of several BSS’s.

Firewall

A security system used to enforce an access control policy between an organization’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.

Intranet

A network based on the TCP/IP Protocol (an internet) belonging to an organization, and

accessible only by that organization's members, employees, or others with authorization.

Infrastructure Network

Unlike “Ad-hoc” network, where users on a wireless LAN send data to each other directly,

users’ on an “Infrastructure” network send data to the other point through a dedicated access

point. Additionally, the access point enables users on a wireless LAN to access an existing

wired network to take advantage of sharing the wired networks resources, such as files, printers,

and Internet access.

IP Address

An identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP