What type of network topology features devices connected in a circular loop?

In a network topology, a ring topology features devices connected in a circular loop, where each device is linked to two others, one on each side. This configuration allows data to travel in one direction around the ring. When a device sends data, it passes it to the next device in the loop, and the data continues to circulate until it reaches its intended destination. This design can simplify the process of passing data and can improve performance in certain scenarios because each device has equal access to the network resources. However, it can also create vulnerabilities; if one device fails, it can disrupt the entire network unless redundancy measures are in place.

In contrast, a mesh topology comprises devices that are interconnected in a way that every device connects to one or more other devices, allowing for multiple pathways for data. A hybrid topology combines various types of topologies, while a star topology has all devices connected to a central hub or switch. Thus, ring topology is specifically defined by its circular configuration, making it distinct from the other topologies mentioned.