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addresses to devices on a network. With d
y
namic
addressin
g
, a device can have a different IP address
ever
y
time it connects to the network. In some s
y
stems,
the device's IP address can even chan
g
e while it is still
connected. DHCP also supports a mix of static and
d
y
namic IP addresses. This simplifies the task for
network administrators because the software keeps
track of IP addresses rather than requirin
g
an
administrator to mana
g
e the task. This means a new
computer can be added to a network without the hassle
of manuall
y
assi
g
nin
g
it a unique IP address. DHCP
allows the specification for the service provided b
y
a
router,
g
atewa
y
, or other network device that
automaticall
y
assi
g
ns an IP address to an
y
device that
requests one
DNS Domain Name System is an Internet service that
translates domain names into IP addresses. Since
domain names are alphabetic, the
y
're easier to
remember. The Internet however, is reall
y
based on IP
addresses ever
y
time
y
ou use a domain name the DNS
will translate the name into the correspondin
g
IP
address. For example, the domain name
www.network_camera.com mi
g
ht translate to
192.167.222.8.
E
Enterprise
network
An enterprise network consists of collections of
networks connected to each other over a
g
eo
g
raphicall
y
dispersed area. The enterprise network serves the needs
of a widel
y
distributed compan
y
and operates the
company’s mission-critical applications.