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requiring an administrator to manage the task. This means a new
computer can be added to a network
manually assigning it a unique IP address. DHCP allows the
specification for the service provided by a router, gateway, or
other network device that automatically assigns an IP address to
any device that requests one
DNS Domain N
ame System is an Internet service that translates domain
names into IP addresses. Since domain names are alphabetic,
they're easier to remember. The Internet however, is really based
on IP addresses every time you use a domain name the DNS will
translate t
he name into the corresponding IP address. For example,
the domain name www.network_camera.com
192.167.222.8.
E
Enterprise
network
An enterprise network consists of collections of networks
connected to each other over a geograp
hically dispersed area. The
enterprise network serves the needs of a widely distributed
company and operates the company’s mission-
applications.
Ethernet
The most popular LAN communication technology. There are a
variety of types of Ethernet,
including 10 Mbps (traditional
Ethernet), 100 Mbps (Fast Ethernet), and 1,000 Mbps (Gigabit
Ethernet). Most Ethernet networks use Category 5 cabling to carry
information, in the form of electrical signals, between devices.
Ethernet is an implementation of
CSMA/CD that operates in a bus
or star topology.
F
Fast Ethernet Fast Ethernet, also called 100BASE-
T, operates at 10 or 100Mbps
