Which network topology is described as having all computers connected to a single cable?

• A. Star Topology
• B. Mesh Topology
• C. Bus Topology
• D. Ring Topology

Answer: (C)

The network topology characterized by all computers being connected to a single cable is known as Bus Topology. In this arrangement, a single central cable, known as the bus, serves as the backbone to which all network devices are directly attached. Data sent by one device travels along the bus in both directions until it reaches its intended destination. This design allows for easy installation and minimal cable requirements, making it a straightforward option for smaller networks.

Additionally, Bus Topology can efficiently handle data transmission as long as the network is not overloaded. However, it is important to note that any failure in the central cable can bring down the entire network, highlighting one of the topology's significant vulnerabilities. This contrasts with other topologies such as Star, Mesh, and Ring, each of which utilizes different configurations and has varied implications for network management and reliability.