What network topology consists of devices connected to a common or shared cable?

The network topology that consists of devices connected to a common or shared cable is known as the bus topology. In this setup, all network devices are connected to a single central cable, which serves as a backbone for the data transmission. Data sent from one device travels along the bus cable until it reaches its destination.

This topology is relatively straightforward and requires less cabling than some other types of networks, which can make it more cost-effective for smaller or less complex networks.

The bus topology can be advantageous in terms of deployment and setup, but it does have limitations, such as the potential for collisions and difficulties in troubleshooting, since a problem in the central cable can disrupt the entire network. However, the primary defining characteristic of a bus topology is its reliance on a shared communication medium, making it uniquely suited for this description.