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Chapter 5 review - -Chapter 5 LANs and WLANs Network 2 or...

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-Chapter 5 LANs and WLANs Network 2 or more computers linked together form a network. Network topology can be classified as: - Physical topology : the way devices are connected physically. - Logical topology : The way the message flows throughout the network (Network protocol). Each connection point on a network is referred to as a node A bridge can connect two similar networks A gateway joins two dissimilar networks - Router : Typically connects a LAN to a WAN. Network Classifications Personal Area Network (PAN) - interconnection of personal Digital devices Neighborhood Area Network (NAN ) - connectivity spread over several buildings Local Area Network (LAN) - usually connects computers in a single building Metropolitan Area Network (MAN) - public high-speed network with range of about 50 miles Wide Area Network (WAN) - consists of several smaller networks Network Devices Each connection point on a network is referred to as a node
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To connect to a LAN , a computer requires network circuitry, sometimes referred to as a network interface card (NIC) A networked peripheral, or network- enabled peripheral , is any device that contains network circuitry to directly connect to a network A network device, or network appliance, is any electronic device that broadcasts network data, boosts signals, or routes data to its destination Network Devices Clients, Servers, and Peers Network devices can function as clients or as servers - Application server - File server - Print server Networks that include one or more servers can operate in client/server mode Physical Topology The arrangement of devices in a network is referred to as its physical topology - Star - Ring - Bus - Mesh - Tree Two similar networks can be connected by a device called a bridge Gateway is a generic term for any device or software code used to join two networks Network Links
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