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Telecommunication Systems
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Enable the transmission of data over public or private networks
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Network
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A communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, so that they can work together
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Local Area Netwrok (LAN)
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Designed to connect a group of computers in close proximity to each other
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Wide Area Network (WAN)
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Spans a large geographic area
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Metropolitan Area Network
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A large computer network usually spanning a city
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Primary Types of Architecture Networks
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-Peer-to-Peer (P2P)-Client/Server
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Peer-to-Peer Network
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Any network without a central file server and in which all computers in the network have access to the public files located on all other workstations
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Client
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A computer that is designed to request information from a server
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Client/Server Network
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A model for applications in which the bulk of the back-end processing, such as performing a physical search of a database, takes place on a server, while the front-end processing, which involves communicating with the users, is handled by the clients
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Network Operating System (NOS)
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The operating system that runs a network, steering information between computers and managing security and users
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Packet-Switching
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Occurs when the sending computer divides a message into a number of efficiently sized units called packets, each of which contains the address of the destination computer
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Router
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An intelligent connecting device that examines each packet of data it receives and then decides which way to send it onward toward its destination
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Types of Topology Networks
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-Bus-Star-Ring-Hybrid-Wireless
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Types of Protocol Networks
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-Ethernet-Transmission Control Protocol/Internet Protocol (TCP/IP)
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Types of Media Networks
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-Coaxial-Twisted-Pair-Fiber-Optic
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