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CompTIA Security+ · CompTIA
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
DNS sinkhole: A security tool that intentionally responds with a false IP address for known malicious domains. It can redirect or block traffic attempting to reach those domains, preventing malware from communicating with its command-and-control servers. It also helps capture and analyze this traffic for threat intelligence.
The correct answer is: C. A DNS sinkhole can be used to capture traffic to known-malicious domains used by attackers. A DNS sinkhole is a security mechanism that redirects malicious or unwanted domain requests to a controlled server, effectively preventing devices from communicating with harmful sites.
The Answer is C, and also the same question is in Palo Alto Networks PCNSA certification.