Computer Science for IGCSE & O level - Data Transmission (Section 2 - No. 18)

What is the main function of 'Cyclic Redundancy Checks' (CRC)?

To ensure that packets are delivered in the correct order.

To make sure the data transmission happens fast.

To detect transmission errors in the payload.

To encrypt data for secure transmission.

CRCs are primarily used to detect errors that may occur during data transmission.