In which topology are network devices connected to a network media or cable, which is connected in a loop?

• A. Ring topology
• B. Bus topology
• C. Star topology
• D. Mesh topology

Answer: (A)

In a ring topology, network devices are connected in a closed loop by the same network medium. Data travels from one device to the next around that loop, often using a token circulating to grant the right to transmit. This looped arrangement is the defining feature that matches the description in the question. If the loop is interrupted, communication can fail unless protective measures or a second ring are used. Compared with a bus topology (all devices share a single cable), a star topology (devices connect to a central hub), or a mesh topology (direct links between many devices), the circular loop setup is the key characteristic of a ring topology.