Computer Science for IGCSE & O level - Data Transmission (Section 4 - No. 33)

When using ARQ, if an error is detected, what typically happens?

The data is immediately discarded.

The receiver sends a NAK to the sender.

The transmission speed is increased to compensate.

The sender continues to send the next block of data.

If an error is detected, the receiver typically sends a negative acknowledgment (NAK) to the sender.