What are two services performed by the data link layer of the OSI model? (Choose two.)

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Last Updated on January 13, 2019 by InfraExam

What are two services performed by the data link layer of the OSI model? (Choose two.)

  • It encrypts data packets.
  • It determines the path to forward packets.
  • It accepts Layer 3 packets and encapsulates them into frames.
  • It provides media access control and performs error detection.
  • It monitors the Layer 2 communication by building a MAC address table.
    Explanation:The data link layer is responsible for the exchange of frames between nodes over a physical network media. Specifically the data link layer performs two basic services:

    • It accepts Layer 3 packets and encapsulates them into frames.
    • It provides media access control and performs error detection.

    Path determination is a service provided at Layer 3. A Layer 2 switch builds a MAC address table as part of its operation, but path determination is not the service that is provided by the data link layer.

For All Questions: CCNA1 ITN Chapter 4 Exam Answers 2019

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