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Network Topology
they describe the arrangement of devices and connections in a network
Bus Topology
In this topology, all nodes are connected to a single central cable
Star Topology
In this topology, all nodes are connected to a central hub or switch
Operation of a bus topology
Nodes listen for network traffic using CSMA/CD and only one node can transmit at a time
Operation of a star topology
The switch identifies devices using MAC addresses and broadcasts data to all devices and only sends data to the intended device.
Physical Topology
How devices are physically connected (Star)
Logical Topology
how data flows in the network (Bus)
Note 
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