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addresses
to devices on a network. With dynamic
addressing, a device can have a different IP address
every time it connects to the network. In some systems,
the device's IP address can even change while it is still
connected. DHCP also supports a mix of static and
dynamic IP addresses. This simplifies the task for
network administrators because the software keeps
track of IP addresses rather than requiring an
administrator to manage the task. This means a new
computer can be added to a network without the hassle
of 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 Name 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 the name into the corresponding IP
address. For example, the domain name
www.network_camera.com might translate to
192.167.222.8.
E
Enterprise
network
An enterprise network consists of collections of
networks connected to each other over a geographically
dispersed area. The enterprise network serves the needs
of a widely distributed company and operates the
company’s mission-critical applications.