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

---
id: 5ea9997bbec2e9bc47e94daf
challengeType: 11
videoId: F1QI9tNuDQg
---

## Description
<section id='description'>
</section>

## Tests
<section id='tests'>

```yml
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)`
  solution: 3
```

</section>