"A port scanner is an application designed to probe a server or host for open ports. Such an application may be used by administrators to verify security policies of their networks and by attackers to identify network services running on a host and exploit vulnerabilities."
source: https://en.wikipedia.org/wiki/Port_scanner
So B is the correct answer
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Community vote distribution
A (35%)
C (25%)
B (20%)
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Leo_Visser
Highly Voted 2 years, 11 months agoWISDOM2080
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