2.0 Networking


2.8 Identify various types of networks.


  • LAN

    A Local Area Network (LAN) is a network that connects computers in a workgroup, department, or building. A lan is usually controlled and maintained by a single organization. A LAN may include separate networks or subnets, many switches and routers but the entire LAN is under one administration. Simply speaking if you have a bunch of computers and you network them together by connecting them to a switch and give them a common addressing or network protocol scheme then you have a lan. This could also be called an intranet or interior network in that it is interior to that organization only.


  • WAN

    A WAN or wide are network is a communication system that interconnects LANs across wide geographical distances. It links the computers outside of an organization's properties (buildings or campus area) and crosses public areas that are regulated by local, national, or international authorities. It is also the network that is formed between you and your ISP or internet service provider.


  • PAN


  • MAN


  • Topologies


    • Mesh
    • A mesh topology is one in which devices are connected with multiple connections between network devices.


    • Ring
    • A ring topology connects computers in a continuous loop with no open end. This type of topology is often used in Token Ring or fiber optic networks.


    • Bus
    • A Bus topology uses a common backbone to connect all devices.


    • Star
    • A star topology uses a central point through which devices connect.


    • Hybrid
    • A hybrid topology is a combination of two or more basic network topologies, such as a star-bus, star-ring, or hybrid-mesh topology.



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