Which network topology connects all devices to a central hub?

The star topology connects all devices to a central hub. In this configuration, each device on the network is individually connected to a central point, which acts as a hub or switch. This setup allows for easy management and troubleshooting since any issue (such as a failure of a device or its connection) does not affect the entire network—only the device that's directly connected to the central hub is impacted. Additionally, adding or removing devices in a star topology is straightforward, as it involves simply connecting or disconnecting from the hub without disrupting the other devices on the network.

In contrast, bus topology relies on a single central cable, or bus, to which all devices are connected. A failure in the bus can bring down the entire network. Ring topology connects devices in a circular manner, so each device is connected to two others, which can complicate troubleshooting and adds dependence on every connection. Mesh topology connects multiple devices to each other, ensuring redundancy but also requiring more cabling and making the architecture more complex. Therefore, the star topology is favored for its simplicity and ease of maintenance.