Which of the following is a technique of using a modem to automatically scan a list of telephone numbers, usually dialing every number in a local area code to search for computers, Bulletin board…

Demon dialing refers specifically to the repeated automated dialing of a single phone number to tie up a line or brute-force a connection, not scanning an entire range of numbers.

Warkitting combines wardriving with rootkit deployment to compromise and reprogram wireless routers, which involves Wi-Fi networks rather than telephone lines.

War driving is the act of moving through an area, typically in a vehicle, to discover and map Wi-Fi wireless networks using a laptop or mobile device, not a telephone-based technique.

Wardialing uses a modem and software (such as ToneLoc or THC-SCAN) to automatically dial a sequential list of telephone numbers within a target area code. The goal is to identify systems that answer with a modem carrier tone, revealing potential entry points like dial-up servers, PBX systems, and bulletin board systems. This technique was foundational in early network reconnaissance before widespread internet adoption.