Exam PT0-002 topic 1 question 389 discussion

Actual exam question from CompTIA's PT0-002

Question #: 389
Topic #: 1

A penetration tester is troubleshooting the right value for the urls variable that should be used in the following script:

Which of the following instructions in a Python script will prevent duplicate entries in the output and work with the script above?

A. [u for u in url_list if u not in url_list]
B. list({u: True for u in url_list}.keys())
C. f"{u: True for u in url_list}"
D. json.dumps({u: True for u in url_list}.keys())

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Suggested Answer: B 🗳️

by NappyGamer at Sept. 21, 2024, 10:13 a.m.

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NappyGamer

Highly Voted 9 months, 2 weeks ago

Selected Answer: B

To prevent duplicate entries in the url_list, the best choice from the options provided is: B. list({u: True for u in url_list}.keys()) This option uses a dictionary comprehension to create a dictionary where each URL is a key (removing duplicates, as dictionary keys must be unique), and then retrieves the keys as a list. Here's how you can incorporate it into your script: url_list = ['https://localhost', 'http://127/0/0/1'] + list1 + list2 urls = list({u: True for u in url_list}.keys()) for url in urls: print(requests.get(url).text) The other options either don't achieve the desired result or are syntactically incorrect.

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