What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

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  • Post last modified:January 7, 2019
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Last Updated on January 7, 2019 by InfraExam

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

  • error correction through a collision detection method
  • session control using port numbers
  • data link layer addressing
  • placement and removal of frames from the media
  • detection of errors through CRC calculations
  • delimiting groups of bits into frames
  • conversion of bits into data signals
    Explanation:

    Through the framing process, delimiters are used to identify the start and end of the sequence of bits that make up a frame. Data link layer addressing is added to enable a frame to be delivered to a destination node. A cyclic redundancy check (CRC) field is calculated on every bit and added to the frame. If the CRC value contained in the arriving frame is the same as the one the receiving node creates, the frame will be processed.
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