Wednesday, 22 August 2018

WHAT ARE THE TYPES OF NETWORK TOPOLOGY?

Linear bus topology is a type of network topology in which each device is connected one after the other in a sequential chain (shown right). In this case, the bus is the network connection between the devices, and if any link in the network chain is severed, all network transmission is halted. It works well for small networks because it is simple to set up and utilizes shorter cables since each device is connected to the next. It is a poor solution for larger networks, however since the entire network relies on each connection, and network speed is reduced as more devices are added.

source: https://www.computerhope.com/jargon/l/linear-bus-topology.htm





Alternatively referred to as a Star network, Star topology is one of the most common network setups. In this configuration, every node connects to a central network device, like a hubswitch, or computer. The central network device acts as a server and the peripheral devices act as clients. Depending on the type of network card used in each computer of the star topology, a coaxial cable or a RJ-45 network cable is used to connect computers together. 

source: https://www.computerhope.com/jargon/s/startopo.htm



A Ring topology is a network configuration in which device connections create a circular data path. Each networked device is connected to two others, like points on a circle. Together, devices in a ring topology are referred to as a ring network.

source: https://www.computerhope.com/jargon/m/mesh.htm



A network setup where each computer and network device is interconnected with one another, allowing for most transmissions to be distributed, even if one of the connections go down. It is a topology commonly used for wireless networks. Below is a visual example of a simple computer setup on a network using a mesh topology.


A hybrid topology is a type of network topology that uses two or more differing network topologies. These topologies include a mix of bus topologymesh topologyring topologystar topology, and tree topology.


                                                                                              


  source: https://www.computerhope.com/jargon/h/hybrtopo.htm






Saturday, 11 August 2018

WHAT ARE THE TYPES OF COMPUTER NETWORK?


TYPES OF COMPUTER NETWORKS








Short for Metropolitan-Area NetworkMAN is a network that is utilized across multiple buildings. A MAN is much larger than the standard Local-Area Network (LAN), but is not as large as a Wide Area Network (WAN). A MAN is commonly used in school campuses and large companies with multiple buildings.


A Wide Area network (WAN) is a geographically distributed private telecommunications network that interconnects multiple local area networks (LANs). In an enterprise, a WAN may consist of connections to a company's headquarters, branch offices, colocation facilities, cloud services and other facilities. Typically, a router or other multifunction device is used to connect a LAN to a WAN.
                                                                                                                source: https://searchenterprisewan.techtarget.com/definition/WAN




A Local-Area Network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.                                                                                           









A Personal Area Network (PAN) is a computer network used for data transmission amongst devices such as computers, telephones, tablets, personal digital assistants, fax machines and printers, that are located close to a single user