SIMPLE TOPIC IN SUBJECT COMPUTER SCIENCE IN SEM 2

NETWORK TOPOLOGY

- Network topology refers to the layout of the computers and devices in a communications network

Type of Network Topology
- Bus topology
- Ring topology
- Star topology

BUS TOPOLOGY



Advantages

• Easy and inexpensive to set up.
• Adding and removing nodes can be done can be done without disturbing the rest of the network.
• Failure of one node does not affect the rest of the network.

Disadvantages

• Failure of the central cable will shut down the entire network.
• Only suitable for small size network.
• Data collision may occur because data transmitted will travel in both directions.

RING TOPOLOGY

Advantages

• Can span a larger network than a bus network.
• Cable faults are easily located , making troubleshooting easier.
• The transmission of data is relatively simple as data travels in one direction only.

Disadvantages

• More difficult to install compared to bus network.
• Failure of any cable or node will affect the operation of the entire network.
• Slower data transmission as the data sent will go through all the nodes.

STAR TOPOLOGY

Advantages

• Failur of one node will not affect the entire network.
• Devices can be added to or removed from the network with little or no disruption to the network.
• Easy to identify problems, making troubleshooting easier.

Disadvantages

• Failure of hud or switch willshut down the entire network.
• Requires more cable than the other topologies.
• More expensive due to the cost of the hub/switch.