Crc in computer networks example

  • Answer and Explanation:
    The divisor is 6-bit, therefore this is a CRC-5 polynomial.
    To begin, we can derive n from P, where P is (n+1).
    Thus, the value of CRC is 1110001100000.
  • Cyclic Redundancy Checks
    It can be employed to detect errors in digital data and is used primarily in data transmission systems; for example, a 32-bit CRC is employed in the transmission of data over Ethernet.
    The CRC can only detect errors in digital data; it cannot correct them once detected.
  • Step-by-step explanation:
    The sequence after adding n = 3 extra zeros -1010011110000.
    The remainder polynomial will be 1.
    Hence, the CRC will be 001.
For example, the polynomial x3 + x2 + 1 is the check data bit of 1101. A data message that could be thousands of bytes is divided by the polynomial constant with exclusive or bit-by-bit operation. The remainder of the division is the CRC that is appended at the end of a frame or block.

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