Answer : In a typical bus network, a single cable is usually used without a type of electronic device such as a repeater or amplifier so that the signal from one computer can be transmitted directly to another computer. Hence this topology is called passive topology. When a computer sends a message to a computer in another corner, the message is transmitted through a signal cable and reaches all the computers. Only the computer to which it is sent receives the message and others simply reject the packet without looking at it. The bus can send only one computer message at a time in the topology. When the computer is sending a message in the corner. Then others have to wait until the end of his sending. After sending his message, another computer can send the message. Therefore, when the number of computers in the network increases, the network performance deteriorates. Of course, this problem also occurs in star and ring topology. Another important factor in the bus network is termination. Because the bus is a passive topology, the signal can travel freely from one end to the other. If the end of the cable is not terminated then the signal can be seen going from one end to the other but pushing back from there. In this way the electric signal continues to travel and the bhajghata will be mixed with the next signal. The return of the signal from the edge is called ringing. To prevent this ringing, a terminator called terminator is used at the end of the cable. This terminator depletes the electrical signal , so it cannot be reflected. There will be problems if Terminator is not used at the end. If there is a problem with your bus topology network, first check if the two ends of the bus are terminated properly.