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Functions of OSI and TCP/IP Layers Q.1

0. In a data link protocol, the frame delimiter flag is given by 0111. Assuming that bit stuffing is employed, the transmitter sends the data sequence 01110110 as

  • Option : D
  • Explanation : Delimiter flag: 0111
    Data sequence: 01110110
    So, for a flag of 4 bits we will compare data sequence with pattern of 3 bits i.e. 011. Data sequence : 0 1 1 1 0 1 1 0
    The underlined bits are found matched, hence, 0 is stuffed.
    Thus resulting in the data sequence as 0110101100 which is option (d).
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