Jatin Jain
Give explanation for option D. Why option D is incorrect??
Two IP fragments are are created on router of length 820 Bytes, 620 Bytes.
KG AI MentorKG AI Mentor
Quick AnswerOption D is incorrect because the TCP destination port is in the TCP header, which resides in the first fragment. The second fragment contains only TCP data, so it cannot reveal the port. Key StepsMTU on R→Q link is 820 bytes. First fragment: 820 bytes total (IP header 20 + payload 800). Second fragment: 620 bytes total (IP header 20 + payload 600). The TCP header (20 bytes) is within the first fragment’s payload, not in the second fragment. Therefore, inspecting only the second fragment cannot determine the destination port; you need the first fragment (or reassembly) to see the TCP header. — KG AI Mentor 🤖