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Udp and tcp use 1s complement for their checksums. suppose you have the following three 8-bit bytes: 01010011, 01100110, 01110100. what is the 1s complement of the sum of these 8-bit bytes? (note that although udp and tcp use 16-bit words in computing the checksum, for this problem you are being asked to consider 8-bit sums.) show all work. why is it that udp takes the 1s complement of the sum; that is, why not just use the sum? with the 1s complement scheme, how does the receiver detect errors? is it possible that a 1-bit error will go undetected? how about a 2-bit error?

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