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Key Terms


device that a packet is sent to when it is intended for a network outside the local area network


protocol most closely associated with Windows family of network operating systems


type of protocol most closely associated with Novell Netware operating system


protocol used to communicate over the Internet

crossover cable

type of cable used to connect a computer directly to another computer of a switch to another switch using standard ports

network layer

layer 3 of the OSI model that is concerned with routing

data link layer

layer 2 of the OSI model which is the level a switch would operate

physical layer

layer 1 of the OSI model which is the level that a hub would operate

fiber optic cable

type of network cable that is very expensive and uses light instead of electricity to transmit data


the device in a Network sends packets only to the node or nodes for which they are intended. Also known as a smart hub

uplink port

port on a switch that allows you to connect to another switch without using a crossover cable

UTP cable

the most common type of network cable used to interconnect computers

cat 6 cable

newer type of network cable used for gigabit networks


identifies the router to which packets for remote networks such as the Internet will be sent


identifies which portion of the IP address is the network address to divide a large network into smaller network segments


type of connector used with common twisted pair wire for ethernet networks


type of connector used primarily for home phone systems

coaxial cable

type of cable no longer used for networking but still used for cable TV


Microsoft's simple non-routable protocol that does not work with the Internet

IP address

address used to Identify hosts on a network

network port

A logical port connection provided by the IP protocol to direct incoming network traffic to a specific protocol

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