DSST Management Information Systems Practice Exam

In a bus topology, the network architecture is designed around a single central cable, or bus, which connects all network devices. In this configuration, data is transmitted in both directions along the bus, but this structure means that only one message can be sent at a time. If multiple devices attempt to send messages simultaneously, a collision occurs, leading to lost data and requiring retransmission.

The bus topology's characteristic of handling only one message at a time is rooted in the way devices share the network medium. While devices can be ready to send their messages, only one can actually transmit successfully at any given moment without interference. This limitation can lead to increased latency and decreased efficiency as more devices are added to the network, which is a consideration when planning network designs based on bus topology.