Network Topology - SS3 ICT Lesson Note

Network topology refers to the arrangement or layout of devices, links, and nodes within a computer network. It defines how devices are connected to each other and how data is transmitted. There are several common network topologies:

 

Types of network topologies:

• Star Topology: In a star topology, all devices are connected to a central hub or switch. This central point manages data traffic and ensures that if one device fails, it doesn't affect the others. It's commonly used in LANs.

Source:(networkingsignal.com) 

 

• Bus Topology: In a bus topology, all devices are connected to a single central cable or "bus." Data travels along the bus, and devices receive the data they need while ignoring the rest. This topology is simple but can be prone to disruptions if the main cable is damaged.

 

Source:(cbtnuggets.com) 

 

• Ring Topology: In a ring topology, devices are connected in a circular fashion, where each device is connected to exactly two other devices. Data travels in a unidirectional or bidirectional manner around the ring. It's reliable but can be challenging to expand.

 

Source:(comparitech.com) 

 

• Mesh Topology: In a mesh topology, every device is connected to every other device. This redundancy ensures high reliability and fault tolerance, but it can be complex and expensive to implement, particularly in large networks.

 

Source:(edrawsoft.com) 

 

• Hybrid Topology: Many networks use a combination of these basic topologies to meet specific needs. For example, a large organization might use a star topology within departments but connect these departmental hubs in a ring topology for inter-department communication.

 

Source:(javatpoint.com)