Which network topology saves cable resources but makes it difficult to add new nodes ? A. Ring B. Bus C. Star D. Mesh

Identification of the Topology

To determine which network topology saves cable resources but makes it difficult to add new nodes, let's briefly analyze each option:

1. A. Ring: In this topology, each device is connected to two others, forming a circular pathway for signals. While it’s efficient in terms of cable usage, adding new nodes can disrupt the entire network.

2. B. Bus: A single central cable (the "bus") connects all devices. This topology is quite effective for saving cable resources. However, adding new nodes requires additional connections to the bus, which can be straightforward, but too many connections can lead to signal degradation.

3. C. Star: In a star topology, each device is connected to a central hub. This setup uses more cabling than a bus or a ring topology, and adding new nodes is simplified as they can be connected directly to the hub.

4. D. Mesh: In a mesh topology, each node is interlinked with several others. This topology requires the most cabling and is very complex to set up, hence it does not save resources.

Conclusion

The topology that saves cable resources but makes it difficult to add new nodes is B. Bus.

Final Answer

B. Bus