What is Wide Area Network (WAN)? Uses, Advantages and Disadvantages

Wide Area Network (WAN):

  • WAN interconnects different Sites, User Terminals, and enable LANs to Communicate with each other.
  • They exist in an unlimited geographical area.
  • Used to Communicate to Nationwide or Worldwide.
  • Transmission medium used are Telephone Lines, microwave and Satellite links.
  • Devices used are HUB, Switches, Routers (etc.)
  • Speed of Data Transmission is 1800 to 9600 bits per second.
  • Very High Installation cost as Compare to LANs.
  • Not owned by a single organization.
  • Complex structure than LAN
  • There is more chance of errors due to the distance data travels.
  • Success Rate of Data Transmission is less than LAN.
  • (e.g.) Internet, Network of all Branches of a Bank.


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