Your question is TCP Protocol Walkthrough. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Walk me through the TCP protocol and how its mechanisms can impact security and reliability.
Explain connection establishment, data transfer, retransmission, flow control, congestion control, and connection teardown. Discuss relevant threats, failure modes, and how you would verify and monitor TCP behavior in production.