Which command puts the wireless card in monitor mode?

Which command puts the wireless card in monitor mode?

• A. Telnet
• B. Binwalk
• C. Nmap
• D. Airmon-ng

Answer: (D)

Enabling monitor mode on a wireless adapter is what lets you capture all wireless frames in the air, not just those addressed to your device, which is essential for wireless analysis and pentesting. The command to do this is airmon-ng, part of the aircrack-ng suite. It configures the wireless card to operate in monitor mode, often by creating a dedicated monitor interface (for example, wlan0mon) and stopping services that could interfere with sniffing (like NetworkManager or wpa_supplicant). Once in monitor mode, you can use sniffing tools such as airodump-ng to collect packets and analyze traffic. Other tools listed serve different purposes: Telnet is for remote login, Binwalk analyzes firmware images, and Nmap scans networks—none of these switch a wireless card into monitor mode. Remember to have authorization and ensure the driver supports monitor mode.

Enabling monitor mode on a wireless adapter is what lets you capture all wireless frames in the air, not just those addressed to your device, which is essential for wireless analysis and pentesting. The command to do this is airmon-ng, part of the aircrack-ng suite. It configures the wireless card to operate in monitor mode, often by creating a dedicated monitor interface (for example, wlan0mon) and stopping services that could interfere with sniffing (like NetworkManager or wpa_supplicant). Once in monitor mode, you can use sniffing tools such as airodump-ng to collect packets and analyze traffic. Other tools listed serve different purposes: Telnet is for remote login, Binwalk analyzes firmware images, and Nmap scans networks—none of these switch a wireless card into monitor mode. Remember to have authorization and ensure the driver supports monitor mode.