Basic understanding of TCP

Question

I don't fully understand when a TCP connection ends. That is, when a client sends a request to a server and the server responds, is that response part of the same TCP connection? Or is that response made through a brand new TCP connection?

Answer 1

A TCP connection ends when both sides have closed it. A response is sent over the same connection as the request, and there can be many request/response pairs over a single connection. Or none, just a download for example.