NETWORK TOPOLOGY
A network topology refers to the layouts and devices in a communications network
STAR TOPOLOGY
All the computers and other devices on the network connect to a central device,thus forming a star.
Advantages
- If one devices fails, only that device is affected
- Devices can be added to or removed from network with little or no distruption
- Easy to troubleshoot and isolate problem
Disadvatages
- If the hub or switch fails, the entire network will bw inoperable
- requires more cable
- More expensive because the cost of the hub /switch
BUS TOPOLOGY
The bus is the physical cable that connects the computer and other devices
Advantages
- The network are inexpensive and easy to install
- Computers and other devices can be detached and attached at any point on the bus without disturbing the rest of the network
- Failure of one device, does not effect the rest of the network
Disadvantages
- There might be disruption when the computer or devices are added or removed
- It's difficult to identify the problem if the entire network shut down
RING TOPOLOGY
Data transmitted on a ring network travels from device around the network around the entire ring, in one direction.
Advantages
- Cable faults are easily located,making troubleshooting easier
- The uses of token passing enables all devices in a ring topology to share network fairly
Disadvantages
- A failure in any cable or device breaks the loop and can take down the entire network
- Data packets must pass through every computer therefore, this make it slower
CLASSIFICATION OF NETWORK
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