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Exam CS0-002 topic 1 question 380 discussion

Actual exam question from CompTIA's CS0-002

Question #: 380
Topic #: 1

During an incident investigation, a security analyst discovers the web server is generating an unusually high volume of logs. The analyst observes the following response codes:

• 20% of the logs are 403
• 20% of the logs are 404
• 50% of the logs are 200
• 10% of the logs are other codes

The server generates 2MB of logs on a daily basis, and the current day log is over 200MB. Which of the following commands should the analyst use to identify the source of the activity?

A. cat access_log |grep " 403 "
B. cat access_log |grep " 200 "
C. eat access_log |grep " 100 "
D. cat access_log |grep " 404 "
E. cat access_log |grep " 204 "

Show Suggested Answer

Suggested Answer: B 🗳️

by kiduuu at May 3, 2023, 8:46 p.m.

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Dutch012

Highly Voted 2 years ago

This is what happens when you write a comment while you are drunk. anyway: 200MB * 0.50 = 100MB of logs of response code 200 , so it's B

upvoted 5 times

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grelaman

Most Recent 1 year, 8 months ago

Selected Answer: A

403 errors, also known as Forbidden errors, occur when a user tries to access a resource that they are not authorized to access, that should be a huge sign a alarm ... 404 errors are for pages that do not exist, could have some information of the source but 403 logs are addressing directly with the malicious activity.

upvoted 2 times

grelaman

1 year, 8 months ago

some specific examples of why a user might see a 403 error: Trying to access a private file on a web server. Trying to log in to a website with an incorrect password. Trying to access a web page that requires access permissions Trying to access a web page that is only accessible to certain IP addresses or domains. Trying to access a web page that is blocked by a firewall.

upvoted 2 times

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Big_Dre

1 year, 9 months ago

so guy to get this straight so we investigate the code with the highest amount traffic volume in this case code 200?

upvoted 1 times

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Dutch012

2 years ago

200MB and 50% is 200, which means that 100MB is 200, 200 logs need investigation first so I think it is B

upvoted 2 times

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CyberCEH

2 years, 1 month ago

Answer D

upvoted 1 times

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reidsel

2 years, 1 month ago

Selected Answer: B

Answer is B

upvoted 1 times

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Hershey2025

2 years, 1 month ago

Answer is B

upvoted 2 times

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kiduuu

2 years, 2 months ago

Selected Answer: B

The reason for this is that 50% of the logs contain response code 200, which is a successful HTTP response code indicating that the web server successfully processed the request. This means that the source of the activity is likely to be generating successful requests that the server is responding to with a 200 code. By using the grep command to search for "200" in the access_log file, the security analyst can quickly identify the source of this activity. The other response codes, such as 403 and 404, indicate errors or forbidden access, which are less likely to be related to the high volume of logs.

upvoted 4 times

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