Computer Science for IGCSE & O level - Data Transmission (Section 9 - No. 1)
What is a characteristic of the communication between sender and receiver in ARQ?
The sender always retransmits.
Both sender and receiver use the same key.
The receiver sends an acknowledgment.
The data is encrypted and decrypted
Vysvětlení
The receiver sends an acknowledgment to indicate successful reception of the data.