IPUX CS101A manual Enterprise, Network, Fast Ethernet, Firewall, Gateway, Group

E

Enterprise	An enterprise network consists of collections of networks
network	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.
Ethernet	The most popular LAN communication technology. There
	are a variety of types of Ethernet, including 10Mbps
	(traditional Ethernet), 100Mbps (Fast Ethernet), and
	1,000Mbps (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 per second over UTP, STP, or fiber-optic
	media.
Firewall	Firewall is considered the first line of defense in
	protecting private information. For better security, data
	can be encrypted. A system designed to prevent
	unauthorized access to or from a private network.
	Firewalls are frequently used to prevent unauthorized
	Internet users from accessing private networks
	connected to the Internet, especially Intranets all
	messages entering or leaving the intranet pass through
	the firewall, which examines each message and blocks
	those that do not meet the specified security criteria.

G

Gateway	A gateway links computers that use different data
	formats together.
Group	Groups consist of several user machines that have
	similar characteristics such as being in the same
	department.

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