👉Computer Network topologies

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👉📓 What is a Topology

Network Topology is the schematic description of a network arrangement, connecting various nodes (sender and receiver) through lines of connection. Network topologies describe the ways in which the elements of a network are mapped. They describe the physical and logical arrangement of the network nodes.

❖ Types of Network Topology

 ➢ Bus Topology 

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 
1. It transmits data only in one direction. 
2. Every device is connected to a single cable.

 Advantages of Bus Topology 
1. It is cost effective. 
2. Cable required is least compared to other network topology. 
3. Used in small networks. 
4. It is easy to understand. 
5. Easy to expand joining two cables together.

Disadvantages of Bus Topology 
1. Cables fails then whole network fails. 
2. If network traffic is heavy or nodes are more the performance of the network decreases. 
3. Cable has a limited length. 
4. It is slower than the ring topology. 

 


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