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COMPUTER NETWORK:
A network is a group of computers connected together in a way that allows information to be exchanged between the computers.
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PACKET:
A piece of a message transmitted over a packet-switching network.
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LOCAL AREA NETWORK:
A computer network that spans a relatively small area.
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WIDE AREA NETWORK:
A smaller number of devices that can be many kilometers apart.
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NODE:
Anything that is connected to the network. While a node is typically a computer, it can also be something like a printer or CD-ROM tower.
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MEDIA ACCESS CONTROL:
The physical address of any device -- such as the NIC in a computer -- on the network.
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IP ADDRESS:
Internet Protocol (IP) address. An IP address is an identifier for a computer or device on a TCP/IP network.
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BUS TOPOLOGY:
Each node is daisy-chained (connected one right after the other) along the same backbone, similar to Christmas lights.
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RING TOPOLOGY:
Like a bus network, rings have the nodes daisy-chained. The difference is that the end of the network comes back around to the first node, creating a complete circuit.
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NETWORK TOKEN:
A special series of bits that travels around a token-ring network. As the token circulates, computers attached to the network can capture it. The token acts like a ticket, enabling its owner to send a message across the network.
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STAR TOPOLOGY:
Each node is connected to a central device called a hub. The hub takes a signal that comes from any node and passes it along to all the other nodes in the network.
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TREE TOPOLOGY:
A tree topology combines characteristics of linear bus and star topologies. It consists of groups of star-configured workstations connected to a linear bus backbone cable.
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PROTOCOL:
An agreed-upon format for transmitting data between two devices.
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PEER-PEER ARCHITECTURE:
A type of network in which each workstation has equivalent capabilities and responsibilities.
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CLIENT/SERVER ARCHITECTURE:
A network architecture in which each computer or process on the network is either a client or a server.
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HUBS:
A network hub, is a common connection point for devices in a network. Hubs are devices commonly used to connect segments of a LAN.
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COMPUTER NETWORK:
A network is a group of computers connected together in a way that allows information to be exchanged between the computers.
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