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Explain the types of networking.

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A local Area Network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an airport.

The characteristics of LANs:

  • LAN’s enable the sharing of resources such as files or hardware devices that may be needed by multiple users
  • Is limited in size, typically spanning a few hundred meters, and no more than a mile
  • It is fast, with speeds from 10 Mbps to 10 Gbps.
  • Requires little wiring, typically a single cable connecting to each device
  • Has lower cost compared to MAN’S or WAN’s LAN’s can be either wired or wireless Twisted pair, coaxial or fiber optic cable can be used in wired LAN’s.
  • Every LAN uses a protocol -a set of rules that governs how packets are configured and transmitted.
  • Nodes in a LAN are linked together with a certain topology. These topologies include: Bus, Ring, Star
  • LANs are capable of very high transmission rates (100s Mb/s to G b/s)

Metropolitan area network:

A metropolitan area network (MAN) is a network that connects two or more local area networks together but does not extend beyond the boundaries of the town/city.

  • A MAN is covers larger geographical area than a LAN, ranging from several blocks of buildings to entire cities.
  • A MAN might be owned and operated by a single organization, but it usually will be used by many individuals and organizations.
  • A MAN often acts as a high speed network to allow sharing of regional resources.
  • A MAN typically covers an area of between 5 and 50 km diameter.
  • Examples of MAN: Telephone company network that provides a high-speed DSL to customers and cable TV network.

Wide area network:

A wide area network (WAN) is a computer network that covers a broad area. The largest and most well-known example of a WAN is the Internet. A WAN is a data communications network that covers a relatively broad geographic area (i.e. one city to another and one country to another country).

  • To cover great distances, WANs may transmit data over leased high, speed phone lines or wireless links such as satellites.
  • Multiple LANs can be connected together using devices such as bridges, routers, or gateways, which enable them to share data.
  • It operates on a low data transfer rate.

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asked Mar 31, 2020 in Computer by Punit01 (25.7k points)

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