A group of hackers were roaming around a bank office building in a city, driving a luxury car. They were using hacking tools on their laptop with the intention to find a free-access wireless…

Wardriving is specifically defined as the act of driving or moving around a geographical area with a computing device to detect and map wireless local area networks (WLANs), often with the intention of finding unsecured networks for access.

Spectrum analysis involves examining the frequency components of radio signals, which is a technical process distinct from driving around to discover Wi-Fi networks.

Wireless sniffing refers to capturing and analyzing data packets transmitted over a wireless network, typically occurring after a network has been found and access gained or monitored.

GPS mapping is a technique used to record the locations of discovered wireless networks during wardriving, but it is a component of the activity, not the activity itself.