3.4 - Methods of Connection

The General Reference
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There are many methods to connect to a network. Each for different ranges and proximities:

Ranged connection methods:
  • LAN: Local Area Network - A fast connection for devices in close proximity to each other, such as within a building
    • LANs are hard to intercept
    • LANs only work within a small area
  • WAN: Wide Area Network - A network for devices located within a very large area, such as countries
    • WANs have a very large range; they can stretch globally
    • WANs are relatively slow in transfer
  • MAN: Metropolitan Area Network - A network for devices within a medium range, such as within a city
    • MANs support fast, fibre optic connection within cities
    • MANs are more expensive and slower than LANs

Data transfer methods:
  • ADSL: Asymmetric Digital Subscriber Line - A network connection method involving the use of copper telephone wires to transfer data to a modem
  • Leased Line: A secure telecom network between two locations involving the connection from the internet server to the ISP and then to the router within the premises
  • ISDN: A connection involving the transfer of audio and video over copper wires from the network into a hub
  • Satellite: A slow but very wide PtMP connection involving the transfer of data from devices to satellites in space

Audio transfer methods:
  • PSTN: Public Switched Telephone Network - The global telephone network that transfers voice data using copper telephone lines
  • Cellular: The transmission of data from a tower to a device with line of sight

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