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Explain Topologies and its Types.
Types of Network Topology
Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection.
Bus topology is a network type in which every computer and network device is connected to single cable. When it has exactly two endpoints, then it is called Linear Bus topology.
Features of Bus Topology
Advantages of Bus Topology
Disadvantages of Bus Topology
It is called ring topology because it forms a ring as each computer is connected to another computer, with the last one connected to the first. Exactly two neighbours for each device.
Features of Ring Topology
Advantages of Ring Topology
Disadvantages of Ring Topology
In this type of topology all the computers are connected to a single hub through a cable. This hub is the central node and all others nodes are connected to the central node.
Features of Star Topology
Advantages of Star Topology
Disadvantages of Star Topology
It is a point-to-point connection to other nodes or devices. All the network nodes are connected to each other. Mesh has
n(n-1)/2physical channels to link
There are two techniques to transmit data over the Mesh topology, they are :
In routing, the nodes have a routing logic, as per the network requirements. Like routing logic to direct the data to reach the destination using the shortest distance. Or, routing logic which has information about the broken links, and it avoids those node etc. We can even have routing logic, to re-configure the failed nodes.
In flooding, the same data is transmitted to all the network nodes, hence no routing logic is required. The network is robust, and the its very unlikely to lose the data. But it leads to unwanted load over the network.
Types of Mesh Topology
Features of Mesh Topology
Advantages of Mesh Topology
Disadvantages of Mesh Topology
It has a root node and all other nodes are connected to it forming a hierarchy. It is also called hierarchical topology. It should at least have three levels to the hierarchy.
Features of Tree Topology
Advantages of Tree Topology
Disadvantages of Tree Topology
It is two different types of topologies which is a mixture of two or more topologies. For example if in an office in one department ring topology is used and in another star topology is used, connecting these topologies will result in Hybrid Topology (ring topology and star topology).
Features of Hybrid Topology
Advantages of Hybrid Topology
Disadvantages of Hybrid Topology
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