CBSE 12th CS Unit - 2 Chapter 4 - NETWORK TOPOLOGIES

 NETWORK TOPOLOGIES

Network topologies describe the physical or logical arrangement of devices in a network. Some common topologies include:

1. Bus Topology:
• All devices are connected to a single cable (the bus).
• Data is transmitted in both directions on the bus.
• Simple to implement, but a single cable failure can disrupt the entire network.
• Diagram:

 

                                                            Bus topology network diagram

2. Star Topology:
• All devices are connected to a central hub or switch.
• Data is transmitted from the central device to the individual devices.
• Easy to troubleshoot and add new devices.
• If the central device fails, the entire network goes down.
• Diagram:

                                            Star topology network diagram

3. Tree Topology:
• A hierarchical topology that resembles a tree.
• Combines features of bus and star topologies.
• More complex to implement but offers better scalability and fault tolerance.
• Diagram:

 

                                                    Tree topology network diagram