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    Internet Checksum

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    Suppose the information portion of a packet contains 10 bytes consisting of the 8- bit unsigned binary ASCII representation of string "Link Layer," Compute the Internet checksum of this Data.

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    Solution Preview

    Character - ASCII code in Hexadecimal (Decimal)
    L - 0x4C (76)
    i - 0x69 (105)
    n - 0x6E (110)
    k - 0x6B (107)
    space - 0x20 (32)
    L - 0x4C (76)
    a - 0x61 (97)
    y - 0x79 (121)
    e ...

    Solution Summary

    Solution first briefly mentions how the Internet checksum is computed, and then shows it's step-by-step computation for the given data.