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Logical Operations CyberSec First Responder CFR-210 Question # 23 Topic 3 Discussion

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Logical Operations CyberSec First Responder CFR-210 Question # 23 Topic 3 Discussion

CFR-210 Exam Topic 3 Question 23 Discussion:
Question #: 23
Topic #: 3

An organization’s firewall has recently been bombarded with an excessive amount of failed requests. A security analyst has been tasked with providing metrics on any failed attempts to ports above 1000. Which of the following regular expressions will work BEST to identify an IP address with the desired port range?
A.

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):({4,5}\d+)\b/

B.

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):([4]\D+)\b/

C.

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):([4]\d+)\b/

D.

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):(\d{1,5})\b/

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Actual exam question for Logical Operations CFR-210 exam by Jax35339 at Aug 2, 2025, 12:00:00 AM

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