CREST Practitioner Security Analyst (CPSA) Practice

Which technology does Token Ring utilize?

1. A ring topology and tokens to allow nodes to transmit data

2. A star topology with direct links

3. A bus topology to connect multiple devices

4. A protocol for wireless data transmission

The correct answer is: A ring topology and tokens to allow nodes to transmit data

Token Ring is a networking technology that operates on the principle of a ring topology combined with token passing as its method for controlling access to the network. In a Token Ring network, data packets travel around the network in a circular fashion. Each device (or node) on the network may only send data when it holds the token, which ensures that only one device transmits data at a time. This mechanism effectively prevents data collisions and helps maintain orderly communication between the nodes. The rationale behind using a ring topology is that it simplifies the data transmission process and enhances the efficiency of the network. The token mechanism inherently provides a way to regulate access to the shared medium, making it distinct from other topologies and access methods. In contrast, the other options mention different topologies and methods. A star topology requires a central hub, a bus topology connects devices in a single, shared communication line, and wireless data transmission does not pertain to Token Ring at all. Thus, the emphasis on a ring topology along with token passing aptly characterizes how Token Ring operates.