In a data network where every device connects to a single central hub, which topology is used?

In a data network where every device connects to a single central hub, which topology is used?

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

Answer: (B)

Connecting each device to a single central point defines a star topology. In this setup, all communications go through the central hub, so data from one device reaches another by passing through that hub. This makes it easy to add new devices by simply plugging into an available port and helps isolate faults to the branch or device that fails. If the central hub or a connected cable dies, the devices on that link drop out while the rest remain unaffected. In a hub-based star, however, all devices share the same bandwidth and collision domain, which can lead to contention and slower performance unless a switch is used. The other topologies don’t match this structure: a single backbone cable describes bus topology, a loop describes ring topology, and multiple interconnections describe mesh topology.

Connecting each device to a single central point defines a star topology. In this setup, all communications go through the central hub, so data from one device reaches another by passing through that hub. This makes it easy to add new devices by simply plugging into an available port and helps isolate faults to the branch or device that fails. If the central hub or a connected cable dies, the devices on that link drop out while the rest remain unaffected. In a hub-based star, however, all devices share the same bandwidth and collision domain, which can lead to contention and slower performance unless a switch is used. The other topologies don’t match this structure: a single backbone cable describes bus topology, a loop describes ring topology, and multiple interconnections describe mesh topology.