NetStumbler is one of the most famous wireless auditing tools. It works with a wide variety of cards. If it is loaded on a computer, it can be used to detect 802.11 networks. It can easily identify the SSIDs and security tools. It can even identify the channel being used. This tool can also be integrated with the GPS to identify the exact location of AP for plotting onto a map. Answer: B is incorrect. It can identify the channel being used. NetStumbler can be used for a variety of services: For wardriving To verify network configurations To find locations with poor coverage in a WLAN To detect causes of wireless interference To detect unauthorized ("rogue") access points To aim directional antennas for long-haul WLAN links