To understand protocol first you need to understand what successful communication is? Below I am trying to describe the communication between a Boy and Girl Boy Girl Hey Hi How you doing Doing great, what about you Will you join me for a movie Yes sure, what time? 9 PM Sounds great. I have marked above communication as successful communication because it has followed the rules of successful communication. If you read above conversation carefully then you will observe some rules there. Both have asked one question at a time. (one question at time.) A response was always given to each other. (A response is always expected.) Like the above conversation between two human beings, computer also interact with each other and while communicating they also need some set of rules to communicate and these rules are called Protocols. This rules can be One command at a time A r...