Final answer:
A ring topology connects several computers together in a circle without the use of a hub or a switch. Each computer is connected to the next computer in the ring, and messages in this topology travel in one direction around the ring.
Step-by-step explanation:
A ring topology can be defined as connecting several computers together in a circle without the use of a hub or a switch. In this topology, each computer is connected to the next computer in the ring.
When a message is sent in a ring topology, it travels in one direction around the ring, passing through each computer until it reaches its destination. Each computer in the ring receives the message and forwards it to the next computer until it reaches the destination.
This topology is commonly used in local area networks (LANs) and can provide good fault tolerance, as there is no single point of failure. However, if a computer or connection in the ring goes down, it can disrupt communication in the entire ring.