freeCodeCamp/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/understanding-sockets-and-creating-a-tcp-server.md

---
id: 5ea9997bbec2e9bc47e94daf
title: Understanding Sockets and Creating a TCP Server
challengeType: 11
videoId: F1QI9tNuDQg
dashedName: understanding-sockets-and-creating-a-tcp-server
---

# --question--

## --text--

Which of the following functions creates a socket object?

## --answers--

`socket.bind((host, port))`

---

`socket.gethostbyname()`

---

`socket.socket(socket.AF_INET, socket.SOCK_STREAM)`

## --video-solution--

3