chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94dae.md

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+---
+id: 5ea9997bbec2e9bc47e94dae
+title: Introduction and Setup
+challengeType: 11
+videoId: XeQ7ZKtb998
+bilibiliIds:
+  aid: 718017704
+  bvid: BV13Q4y1k7hX
+  cid: 409033630
+dashedName: introduction-and-setup
+---
+
+# --questions--
+
+## --text--
+
+What code editor and extension does the instructor recommend for developing penetration testing tools in Python?
+
+## --answers--
+
+Atom and the atom-python-run extension.
+
+---
+
+VSCode and Microsoft's Python extension.
+
+---
+
+Sublime Text and the Anaconda package.
+
+## --video-solution--
+
+2
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94daf.md

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+---
+id: 5ea9997bbec2e9bc47e94daf
+title: Understanding Sockets and Creating a TCP Server
+challengeType: 11
+videoId: F1QI9tNuDQg
+bilibiliIds:
+  aid: 848005038
+  bvid: BV1bL4y1a7kJ
+  cid: 409034113
+dashedName: understanding-sockets-and-creating-a-tcp-server
+---
+
+# --questions--
+
+## --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
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94db0.md

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+---
+id: 5ea9997bbec2e9bc47e94db0
+title: Creating a TCP Client
+challengeType: 11
+videoId: ugYfJNTawks
+bilibiliIds:
+  aid: 933058124
+  bvid: BV16M4y1g7zL
+  cid: 409034338
+dashedName: creating-a-tcp-client
+---
+
+# --questions--
+
+## --text--
+
+Which socket object method lets you set the maximum amount of data your client accepts at once?
+
+## --answers--
+
+`.recv(1024)`
+
+---
+
+`.decode('ascii')`
+
+---
+
+`.connect(host, port)`
+
+## --video-solution--
+
+1
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94db1.md

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+---
+id: 5ea9997bbec2e9bc47e94db1
+title: Developing an Nmap Scanner part 1
+challengeType: 11
+videoId: jYk9XaGoAnk
+bilibiliIds:
+  aid: 805657338
+  bvid: BV1o34y1S7zf
+  cid: 414718986
+dashedName: developing-an-nmap-scanner-part-1
+---
+
+# --questions--
+
+## --text--
+
+What is the correct command to install the Python 3 version of the `python-nmap` library?
+
+## --answers--
+
+`sudo apt install python-nmap`
+
+---
+
+`pip install python-nmap`
+
+---
+
+`pip3 install python-nmap`
+
+## --video-solution--
+
+3
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94db2.md

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+---
+id: 5ea9997bbec2e9bc47e94db2
+title: Developing an Nmap Scanner part 2
+challengeType: 11
+videoId: a98PscnUsTg
+bilibiliIds:
+  aid: 505526943
+  bvid: BV1Hg411c7oE
+  cid: 409034761
+dashedName: developing-an-nmap-scanner-part-2
+---
+
+# --questions--
+
+## --text--
+
+Which of the following allows you to scan for UDP ports between 21 to 443?
+
+## --answers--
+
+`.scan(ip_addr, '21-443', '-v -sU')`
+
+---
+
+`.scan(ip_addr, '1-1024', '-v -sS')`
+
+---
+
+`.scan(ip_addr, '21-443', '-v -sS')`
+
+## --video-solution--
+
+1
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94db3.md

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+---
+id: 5ea9997bbec2e9bc47e94db3
+title: Developing a Banner Grabber
+challengeType: 11
+videoId: CeGW761BIsA
+bilibiliIds:
+  aid: 633014533
+  bvid: BV1Sb4y127H9
+  cid: 409036288
+dashedName: developing-a-banner-grabber
+---
+
+# --questions--
+
+## --text--
+
+Fill in the blanks to complete the `banner` function below:
+
+```py
+def banner(ip, port):
+    s = socket.socket()
+    s.__A__((ip, __B__))
+    print(s.recv(1024))
+```
+
+## --answers--
+
+A: `connect`
+
+B: `port`
+
+---
+
+A: `getsockname`
+
+B: `'1-1024'`
+
+---
+
+A: `connect`
+
+B: `int(port)`
+
+## --video-solution--
+
+3
+

curriculum/challenges/english/blocks/python-for-penetration-testing/5ea9997bbec2e9bc47e94db4.md

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+---
+id: 5ea9997bbec2e9bc47e94db4
+title: Developing a Port Scanner
+challengeType: 11
+videoId: z_qkqZS7KZ4
+bilibiliIds:
+  aid: 208077317
+  bvid: BV1Uh411p7HS
+  cid: 409036706
+dashedName: developing-a-port-scanner
+---
+
+# --questions--
+
+## --text--
+
+What is the main difference between the `.connect()` and `.connect_ex()` methods?
+
+## --answers--
+
+There is no difference between the two methods.
+
+---
+
+If there is an error or if no host is found, `.connect()` returns an error code while `.connect_ex()` raises an exception.
+
+---
+
+If there is an error or if no host is found, `.connect()` raises an exception while `.connect_ex()` returns an error code.
+
+## --video-solution--
+
+3
+