Question

Explain types of network topologies.

Hint:

Star topologies are most commonly used in modern networks due to their scalability and easy troubleshooting.

Answer 1

Step 1: Understanding Network Topologies.
A network topology is the arrangement or layout of the elements (links, nodes, etc.) in a computer network. It defines the structure and communication pattern of the network. There are several types of network topologies, each with its advantages and disadvantages.
Step 2: Types of Network Topologies.
1. Bus Topology: In a bus topology, all devices are connected to a central cable (the bus). Data sent from one device travels along the bus and can be accessed by all other devices. This topology is simple but can be inefficient for larger networks.
2. Star Topology: In a star topology, each device is connected to a central node, such as a hub or switch. This topology is widely used in modern networks as it provides better performance and easier management. If one connection fails, it does not affect the rest of the network.
3. Ring Topology: In a ring topology, each device is connected to two other devices, forming a circular network. Data travels in one direction around the ring. This topology can be more efficient for data transmission but is vulnerable to failure if one device goes down.
4. Mesh Topology: In a mesh topology, every device is connected to every other device in the network. This provides high redundancy and fault tolerance but is costly and complex to set up and maintain.
5. Hybrid Topology: A hybrid topology combines two or more basic topologies, such as star and bus. It is often used to leverage the advantages of different topologies while minimizing their drawbacks.
Step 3: Conclusion.
The choice of topology depends on factors such as network size, cost, reliability, and performance requirements.