Computer Science for IGCSE & O level - Data Transmission (Section 7 - No. 16)
In ARQ, what does a negative acknowledgement (NAK) indicate?
Successful data transmission.
An error in data transmission.
A request to send more data.
The end of the data transmission.
ব্যাখ্যা
A NAK signals that an error occurred and retransmission is needed.