Fatima has been hired as a contractor to decommission a netw…

Fatima has been hired as a contractor to decommission a network topology that has been employed by a small company since the 1990s. In studying the project specifications, she reads that this physical topology uses a special packet called tokens, and can be unidirectional or bidirectional. Although it has fewer collisions than other types of networks, this topology is rarely seen in the twenty-first century. Baffled as to what type of network this is, she goes on the Internet and researches the technology. What sort of topology does she find?