Which of the following penetration testing techniques automatically tests every phone line in an exchange and tries to locate modems that are…

The demon dialing technique automatically tests every phone line in an exchange and tries to locate

modems that are attached to the

network. Information about these modems can then be used to attempt external unauthorized

access.

Answer B is incorrect. In sniffing, a protocol analyzer is used to capture data packets that are later

decoded to collect information such

as passwords or infrastructure configurations.

Answer D is incorrect. Dumpster diving technique is used for searching paper disposal areas for

unshredded or otherwise improperly

disposed-of reports.

Answer C is incorrect. Social engineering is the most commonly used technique of all, getting

information (like passwords) just by

asking for them.