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_____ is restricted to a small geographical area, usually to a relatively small number of stations.
1. Metropolitan Area Network (MAN)
2. Internet
3. Local Area Network (LAN)
4. Wide Area Network (WAN)

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Correct Answer - Option 3 : Local Area Network (LAN)

The correct answer is Local Area Network (LAN).

  • Local Area Network (LAN) is restricted to a small geographical area, usually to a relatively small number of stations.
    • Local Area Network (LAN) covers a smaller geographical area (Size is limited to a few kilometres) and is privately owned.
    • It can be can used for an office building, home, hospital, schools, etc.
    • LAN is easy to design and maintain.
    • It covers a short distance, and so the error and noise are minimized.
    • It connects network devices in such a way that personal computers and workstations can share data, tools, and programs.
    • The group of computers and devices are connected by a switch, or stack of switches, using a private addressing scheme as defined by the TCP/IP protocol.
    • Routers are found at the boundary of a LAN, connecting them to the larger WAN.

  • Wide Area Network (WAN)
    • It is a computer network that extends over a large geographical area, although it might be confined within the bounds of a state or country. 
    • A WAN could be a connection of LAN connecting to other LANs via telephone lines.
  • Metropolitan Area Network (MAN)
    • It covers a larger area than that of a LAN and a smaller area as compared to WAN.
    • It connects two or more computers that are apart but reside in the same or different cities.
    • It’s hard to design and maintain a Metropolitan Area Network.
    • The fault tolerance of a MAN is less and also there is more congestion in the network.
  • Personal Area Network:
    • It is a computer network that enables communication between computer devices near a person.
    • PANs can be wired, such as USB or FireWire, or they can be wireless, such as infrared, ZigBee, Bluetooth and ultrawideband, or UWB.
    • The range of a PAN typically is a few meters.
  • Internet 
    • It is a worldwide/global system of interconnected computer networks.
    • It is a vast network that connects computers all over the world.
    • Through the Internet, people can share information and communicate from anywhere with an Internet connection.
    • It uses the standard Internet Protocol (TCP/IP).
    • Every computer on the Internet is identified by a unique IP address.
      • IP Address is a unique set of numbers (such as 110.22.33.114) that identifies a computer’s location.
    • Internet is accessible to every user all over the world.
    • The Internet works through a series of networks that connect devices around the world through telephone lines.
    • Users are provided access to the Internet by Internet service providers.
    • The widespread use of mobile broadband and Wi-Fi in the 21st century has allowed this connection to be wireless.
  •   The World Wide Web, commonly referred to as WWW, W3, or the Web is an interconnected system of public webpages accessible through the Internet.
    • The Web is not the same as the Internet: the Web is one of many applications built on top of the Internet.

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