CertNexus CFR-410 Exam - Topic 4 Question 70 Discussion

Actual exam question for CertNexus's CFR-410 exam

Question #: 70
Topic #: 4

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?

AIntrusion prevention system (IPS)

BIntrusion detection system (IDS)

CBlacklisting

DWhitelisting

Show Suggested Answer

Suggested Answer: B

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

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Tess

4 days 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

9 days 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

14 days 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

19 days 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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