Banner grabbing is used to extract version information from services, including SSH, FTP, and web servers.
Option A (Network sniffing) ❌: Captures packets, but does not directly reveal service versions.
Option B (IP scanning) ❌: Identifies active hosts, but not SSH versions.
Option C (Banner grabbing) ✅: Correct.
Can be performed with:
nc 22
or
telnet 22
Option D (DNS enumeration) ❌: Retrieves domain name records, not SSH versions.
???? Reference: CompTIA PenTest+ PT0-003 Official Guide – Service Enumeration & Banner Grabbing
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