Computer Science for IGCSE & O level - Data Transmission (Section 2 - No. 21)

What is the role of the sender and the receiver in a checksum process?

The sender calculates the checksum, and the receiver checks it.

The receiver calculates the checksum, and the sender checks it.

Both the sender and receiver generate different checksums to add security.

Checksums are not used in sending and receiving data.

The sender computes the checksum, and the receiver recalculates it to verify data integrity.