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    Compute the Internet checksum value for two 16-bit words

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    Consider the two 16-bit words (shown in binary) below. Recall that to compute the Internet checksum of a set of 16-bit words, we compute the one's complement sum [1] of the two words. That is, we add the two numbers together, making sure that any carry into the 17th bit of this initial sum is added back into the 1's place of the resulting sum); we then take the one's complement of the result. Compute the Internet checksum value for these two 16-bit words:

    00010010 00110001 this binary number is 4657 decimal (base 10)
    11001111 00010001 this binary number is 53009 decimal (base 10)

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    Solution Preview

    Step 1: we need to add two number together to get:

    00010010 00110001
    +11001111 ...

    Solution Summary

    The solution gives detailed steps on computing the Internet checksum value for two 16-bit words