Topic

TCP Connection

2 questions in this topic.

2013 Q2(e)Transport LayerTCP Connection· 4 marks

TCP’s 4-way handshake used to terminate connections does not guarantee that both sides of the connection will close. Explain why this is and what TCP does to try to maximise the chance that both sides of the connection close once a termination request is sent. You may use an example or diagram.

TCPFINTIME_WAIT

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2015 Q2(f)Transport LayerTCP Connection· 3 marks

Give an example of a case where a two-way handshake to establish a connection could leave one side of the connection live while the other side does not believe there is a connection.

TCPhandshakehalf-open

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