Which of the following describes a 'Ring Network'?

A 'Ring Network' is defined as a topology where each device or station is connected to exactly two other devices, forming a closed loop. This structure allows data to travel in a unidirectional or bidirectional manner. The primary characteristic of a ring network is that each node has exactly two neighbors for communication purposes, which is key to its design.

In this configuration, data packets travel from one device to the next around the ring until they reach their destination. This arrangement has implications for collision management and can lead to predictable data transfer times, although it may struggle with fault tolerance since a failure in one connection can disrupt communication for the entire network.

In contrast, a configuration with a single central device refers to a star topology, while multiple parallel connections would describe a mesh topology. A straight line arrangement implies a bus topology, where devices are connected in a linear sequence rather than forming a closed loop. These different configurations have their own unique advantages and disadvantages, but they do not fit the specific characteristics of a ring network.