What is the purpose of error control in the Data Link Layer?
2025
What is the purpose of error control in the Data Link Layer?
- A.
To prevent unauthorized access
- B.
To correct errors in the physical layer
- C.
To ensure reliable data transmission
- D.
To manage network congestion
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Correct answer: C
Error control in the Data Link Layer ensures that data frames are delivered correctly without errors or loss, using techniques like CRC, ACK/NACK, and retransmission.