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Computer Networks · End Term · 21 Dec 2025 · September 2025 term

Question 12: A TCP connection uses the following identifiers:\ Source…

Question 12

+3 marksNumerical answer

A TCP connection uses the following identifiers:
• Source IP = 192.168.1.10 • Destination IP = 10.0.0.5 • Source Port = 55000 • Destination Port = 80
Assuming that TCP port numbers range from 0 to 65535, but 0–1023 are the well-known (privileged) ports and are excluded, how many additional TCP connections can this host theoretically open to the same server (IP 10.0.0.5, port 80) using different source ports?

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Correct answer: 64511

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Question 12 of 42 in the IIT Madras BS Computer Networks (Computer Networks) End Term paper sat on 21 Dec 2025, in the September 2025 term (Computer Networks 18 Dec 25). It carries 3 marks.

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