Answer:
The process you're referring to is called Error Detection. In this process, the receiver tries to guess the message by utilizing redundant bits. Redundant bits are extra bits added to the original data by the sender to provide additional information for error checking and detection. By calculating and comparing these redundant bits at the receiver's end, errors or discrepancies in the transmitted data can be detected. The receiver can then make an educated guess about the correct message based on this error detection mechanism.