Certified Professional in Python Programming Level 1 (PCPP1) Practice Exam

What does socket.accept() return when called on a listening server socket?

A new socket object for the client and the client's address

The server's listening socket

A tuple containing the client socket and the client's address

When a server socket that’s listening accepts a connection, it hands you a connected socket for that client plus the client’s address. In Python terms, accept() returns a pair: the new socket object you’ll use to communicate with the client, and the client’s address (for IPv4, a (host, port) tuple). The listening socket stays open to accept more connections.

So you typically do something like conn, addr = server.accept(). The conn is the dedicated socket for this client, and addr tells you who connected. This is why the correct description is a tuple containing the client socket and the client’s address.

A boolean indicating a successful connection