Computer Science for IGCSE & O level - Data Transmission (Section 1 - No. 39)
What happens if the receiver detects an error using a checksum?
The data is automatically corrected.
The data is accepted.
A retransmission is requested.
The transmission speed is increased.
Обяснение
When errors are found via checksums, it will trigger a request for retransmission of the corrupted data.