Handling Network Connections

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The whole purpose of socket's existence is to engage in network connections with other network hosts. Each socket can maintain a single connection using a UDP/IP or TCP/IP transport protocol. Which of the two is used is defined by the sock.protocol property.

Sockets are also capable of working with HTTP. HTTP is not a transport protocol, rather, it is based on the TCP. Therefore, when your socket is using TCP it may be for "plain data transmission" or for HTTP.