As described in lecture UDP and TCP segments are protected by 16-bit 1s complement checksums with...

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As described in lecture UDP and TCP segments are protected by 16-bit 1s complement checksums with overflow carries wrapped back to the lowest order bit. (a) Compute the 16-bit 1s complement Internet checksum of the following three 16-bit words: 1100010010011001, 0001000010111001, and 1100010001010001. Show your work. (b) The Internet checksum detects all 1-bit errors. Could it miss a 2-bit error? What about a 3-bit error? Justify your answers. (c) List two possible benefits of including pseudo headers in transport layer checksums. As described in lecture UDP and TCP segments are protected by 16-bit 1s complement checksums with overflow carries wrapped back to the lowest order bit. (a) Compute the 16-bit 1s complement Internet checksum of the following three 16-bit words: 1100010010011001, 0001000010111001, and 1100010001010001. Show your work. (b) The Internet checksum detects all 1-bit errors. Could it miss a 2-bit error? What about a 3-bit error? Justify your answers. (c) List two possible benefits of including pseudo headers in transport layer checksums.

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Solutions Step 1 a Note wrap around if overflow 1 1 0 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0 0 1 0 0 0 0 1 0 ... View the full answer