Answer : The advantage of ring topology is that every computer gets equal access to the network , because the token goes to each computer. That is why a computer in a corner cannot dominate the entire network. As all computers have equal rights, network degradation also occurs equally. This means that when the number of computers increases, the performance of the network decreases , and the consequences of the reduction are shared equally. Although the number of computers in the network increases, its efficiency is not greatly affected. No Savar computer is required in the network.