COMPUTER NETWORK QUESTIONS WITH ANSWERS
1.What do you mean by data communication. Ans : It is the exchange of data between two devices via some form of transmission medium such as wire cable. The communicating system must be part of a communication system made up of a combination of hardware and software.The effectiveness of a data communication system depends on three fundamental characteristics: delivery, accuracy and timeliness. 2.What is simplex Ans: It is the mode of communication between two devices in which flow of data is unidirectional. i.e. one can transmit and other can receive. E.g. keyboard and monitor 3.What is half-duplex Ans: It is the mode of communication between two devices in which flow of data is bidirectional but not at the same time. ie each station can transmit and receive but not at the same time. E.g walkie-talkies are half-duplex system. 4.What is full duplex Ans : It is the mode of communication between two devices in which flow of data is bidirectional and it o...