The topology in which each communicating device is connected to a central node is called:

Correct option is D

In a star topology, each device on the network is individually connected to a central node (often a switch or hub). All communication between devices passes through this central node, making it easy to manage the network. This topology is widely used in Ethernet networks due to its simplicity and reliability. If one connection fails, only that specific device is affected, not the entire network.

Information Booster:

1. Star topology is highly scalable, meaning you can easily add new devices without disturbing the rest of the network.

2. In star topology, the central node (hub or switch) acts as a point of failure. If it fails, the entire network can be affected.

3. Centralized management is one of the advantages of star topology, as it is easy to monitor and troubleshoot the network.

4. Star topology is commonly used in both home networks and corporate networks due to its flexibility and ease of setup.

5. This topology allows for simple data management, as all data transfers go through the central hub, which can filter or route the data appropriately.

6. Star topology is often contrasted with other topologies like ring, where devices are connected in a circular fashion, and bus, where devices share a single communication line.

Additional Knowledge:

• Ring topology connects devices in a closed loop, where each device is connected to two others, forming a continuous ring.

• Bus topology uses a single backbone cable to which all devices are connected, and data is transmitted along this cable to reach other devices.

• Mesh topology involves each device being connected to every other device, providing redundancy and high fault tolerance but requiring many cables.