What occurs when there is a hub failure in a star topology?

In a star topology, all network devices (like computers, printers, and servers) connect to a central hub or switch. This hub acts as a repeater for the transmissions from the connected devices. When there is a hub failure, the central hub is unable to relay data packets between the devices.

As a result of this failure, all devices connected to that hub lose connectivity with each other. This is because there is no longer a central point to facilitate communication. Each device relies on the hub for sending and receiving data. Therefore, if the hub fails, communication between any of the connected devices is disrupted, making it impossible for them to communicate within the network.

This situation illustrates the critical role that the hub plays in maintaining connectivity in a star topology. Without it functioning properly, the entire network segment reliant on that hub is rendered inoperative.