Question

information transmitted by the remote host can be captured to expose the application type, application version, and even operating system type and version. which of the following is a technique hackers use to obtain information about the services running on a target system?

• warriving
• banner grabbing
• war dialing
• firewalking

Explanation:

• Wardriving: Scans for wireless networks, not service details.
• Banner grabbing: Captures service/OS info from remote host responses, matching the question's description.
• Wardialing: Dials phone numbers for modems, not service data.
• Firewalking: Maps firewall rules, not service/OS details.

Answer:

Banner grabbing