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CertNexus CFR-410 Exam - Topic 4 Question 70 Discussion

A web server is under a denial of service (DoS) attack. The administrator reviews logs and creates an access control list (ACL) to stop the attack. Which of the following technologies could perform these steps automatically in the future?
B) Intrusion detection system (IDS)
A) Intrusion prevention system (IPS)
C) Blacklisting
D) Whitelisting

CertNexus CFR-410 Exam - Topic 4 Question 70 Discussion

Actual exam question for CertNexus's CFR-410 exam
Question #: 70
Topic #: 4
[All CFR-410 Questions]

A web server is under a denial of service (DoS) attack. The administrator reviews logs and creates an access control list (ACL) to stop the attack. Which of the following technologies could perform these steps automatically in the future?

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Suggested Answer: B

by Vinnie at Apr 11, 2026, 10:26 AM

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Elinore
1 month ago
I think an IDS is more about detection, not prevention.
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Onita
1 month ago
Definitely an IPS can automate that!
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Tess
2 months ago
Whitelisting seems too restrictive for this situation, but I guess it could help if we know which IPs are safe.
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Darnell
2 months ago
Blacklisting sounds familiar for stopping specific IPs, but I wonder if it would be effective against a large-scale DoS attack.
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Dottie
2 months ago
I remember practicing a question about IDS and IPS, but I can't recall if IDS can actually stop attacks or just detect them.
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Domitila
2 months ago
I think an IPS would be the right choice since it can actively block attacks, but I'm not entirely sure if it can create ACLs automatically.
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