A method of detecting errors in data transmission by adding an extra bit (parity bit) to ensure the number of 1s in the data is either even (even parity) or odd (odd parity)
Data Packet
A small unit of data sent over a network. Each packet contains part of the overall message, along with metadata such as the sender and receiveraddress and error-checking information
Checksum
A value calculated from a block of data before transmission. The receiver recalculates the checksum from the received data and compares it with the transmitted value to check for errors
Automatic Repeat Request (ARQ)
A protocol where the sender retransmits data if no acknowledgment (ACK) is received or if an error is detected, ensuring error-free data transmission
