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What is the main function of the Data Link Layer in the OSI model?

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Question: What is the main function of the Data Link Layer in the OSI model?

Options:

  1. To provide error detection and correction
  2. To establish, maintain, and terminate connections
  3. To route packets between networks
  4. To encrypt data

Correct Answer: To provide error detection and correction

Solution: 

The Data Link Layer (Layer 2) provides error detection and correction, ensuring reliable data transfer over physical media.

What is the main function of the Data Link Layer in the OSI model?

Practice Questions

Q1
What is the main function of the Data Link Layer in the OSI model?
  1. To provide error detection and correction
  2. To establish, maintain, and terminate connections
  3. To route packets between networks
  4. To encrypt data

Questions & Step-by-Step Solutions

What is the main function of the Data Link Layer in the OSI model?
  • Step 1: Understand that the OSI model has 7 layers, and the Data Link Layer is the second layer (Layer 2).
  • Step 2: Know that the main job of the Data Link Layer is to manage how data is sent over a physical connection.
  • Step 3: Learn that it checks for errors in the data that is being sent to make sure it is correct.
  • Step 4: Understand that if there are errors, the Data Link Layer can correct them or request the data to be sent again.
  • Step 5: Remember that this layer helps ensure that data is transferred reliably between devices on the same network.
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