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?

Answer: C. To ensure reliable data transmission — 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…

  1. A.

    To prevent unauthorized access

  2. B.

    To correct errors in the physical layer

  3. C.

    To ensure reliable data transmission

  4. 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.

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