CompTIA
PT0-003 · Question #203
A penetration tester runs a network scan but has some issues accurately enumerating the vulnerabilities due to the following error: OS identification failed Which of the following is most likely causi
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Submitted by lukas.cz· Mar 6, 2026Vulnerability Discovery and Analysis
Question
A penetration tester runs a network scan but has some issues accurately enumerating the vulnerabilities due to the following error:
OS identification failed Which of the following is most likely causing this error?
Options
- AThe scan did not reach the target because of a firewall block rule.
- BThe scanner database is out of date.
- CThe scan is reporting a false positive.
- DThe scan cannot gather one or more fingerprints from the target.
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Topics
#Network scanning#OS fingerprinting#Scanner errors#Vulnerability enumeration