Which of the following is a wireless network detector that is commonly found on Linux?

Kismet is a passive wireless network detector and packet sniffer that operates on Linux (and other Unix-like systems) by placing the wireless adapter into monitor mode. It detects 802.11 networks, collects beacon frames, and can identify hidden SSIDs without actively transmitting packets, making it a staple tool for wireless auditing on Linux platforms.

Abel is the server-side component of Cain and Abel, a Windows-only password recovery and network sniffing tool, not a Linux wireless detector.

NetStumbler is a Windows-based active wireless network scanner that requires sending probe requests, and it does not run on Linux.

Nessus is a vulnerability scanner used for network and host security assessments, not a wireless network detection tool.