Data communication exam questions and answers

What are the 4 key elements for data communication on a network?
Components of Data Communication System
Message : This is most useful asset of a data communication system. Sender : To transfer message from source to destination, someone must be there who will play role of a source. Receiver : Transmission Medium : Set of rules (Protocol) :.
What is data communication in short answer?
The term “Data Communication” comprises two words: Data and Communication.
Data can be any text, image, audio, video, and multimedia files.
Communication is an act of sending or receiving data.
Thus, data communication refers to the exchange of data between two or more networked or connected devices..
Communications data is a part of a message that should be distinguished from the content of the message.
It contains data on the communication's origin, destination, route, time, date, size, duration, or type of underlying service.

What are the 4 key elements for data communication on a network?