The networks of data communication deal with transferring data between two locations. Data emanates from the source and is then sent to the destination, which is sometimes referred to as a sink. The sort of media across which the signal spreads may be categorized. This Book deals with the transmission of data from source to destination is possible via two means: switching and broadcasting and various protocols involved. Data communications often use the process of serial-transmission--a message is broken down into small data packages and transmitted to its destination. When the message...