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The layout of a network's cable system and the methods that workstations use to access and transmit data on the cable are part of the topology of a network. A bus topology network consists of a single cable trunk that connects one workstation to the next in a daisy-chain configuration, as shown in Figure Bus-1. In an actual installation, the cable snakes its way through a building from office to office. All nodes share the same media, and only one node can broadcast messages at a time. While bus topologies are easy to install because they conform well to office layouts, a break in the trunk cable will disable the entire network.