Which of the following is NOT a transmission mode used for data exchange in networking?

In computer networks, the process of reconverting a signal containing multiple analog or digital signal streams back into the original separate and unrelated signals is called ________.

Which of the following statement(s) is/are true regarding data communication? (i) It is simply the act of sending or receiving text messages. (ii) Protocol is a set of rules which are to be followed by the sender and the receiver at the time of data communication.