TestOut LabSim A+ Certification Practice Exam

Which of the following topologies connects each network device to a central hub?

1. Bus

2. Star

3. Ring

4. Mesh

The correct answer is: Star

The topology that connects each network device to a central hub is the star topology. In this arrangement, all network devices, such as computers, printers, and servers, are individually connected to a central hub or switch. This central device acts as a communication point, directing data packets between the devices. One of the key benefits of star topology is its simplicity in terms of installation and configuration. If one device fails or needs to be taken offline for maintenance, the other devices remain unaffected, allowing for easier troubleshooting and resilience within the network. Additionally, the central hub can manage the data traffic effectively, preventing collisions and improving overall network performance. In comparison, the bus topology uses a single cable for all devices, which means that if the main cable fails, the entire network goes down. The ring topology connects devices in a circular fashion, where each device is connected to two others, making it less flexible and more susceptible to disruptions if one connection fails. The mesh topology involves multiple paths between devices, requiring more cabling and complexity, and is not centralized like the star topology.