Question: 3. Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how? 4. UDP and

3. Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how? 4. 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?

3. Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how? 4. UDP and TCP use 1s complement for their checksums. Suppose you have the following three 8bit bytes: 01010011,01100110,01110100. What is the 1 s 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 1 s complement of the sum; that is, why not just use the sum? With the 1 s 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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