Answer: essentially creates a logical star topology out of the more traditional and slower bus network.
Explanation:
The bus topology is a kind of ethernet connection where one cable known as the backbone is responsible for all the connections, therefore a failure at any point results in the failure of the whole system. Whereas a star topology which is commonly used connect several device in a network to one central device.
The hub is outdated so also is the bus network, while the star and the switch are in common use now.
