Answer : One computer cannot transmit data directly to another computer because the computers in the ring topology are not directly connected to each other. When the computer loses the ability to send data to anyone connected to the network, the entire network becomes inoperable. If a corner computer is disconnected from the network or a new corner computer is added to the network, the entire network has to be rearranged. If there is a problem in the corner of such network, it is quite complicated to identify it.