Which Bluetooth discovery tool would produce output indicating Service Discovery Protocol (SDP) data?

Which Bluetooth discovery tool would produce output indicating Service Discovery Protocol (SDP) data?

• A. hcitool lescan
• B. sdptool Service Discovery Protocol (SDP)
• C. bluetoothctl scan
• D. btmgmt info

Answer: (B)

Service Discovery Protocol data is about discovering the services a Bluetooth device offers and how to access them. The tool designed to fetch and display SDP records from remote devices is sdptool. It queries the device’s SDP server and prints the service records, including UUIDs, service names, and port/protocol details, which is exactly what SDP output represents. For example, using sdptool to browse a device will reveal its available services. Other tools are used for general device discovery or controller information and do not output SDP data: hcitool lescan scans for LE advertisements, bluetoothctl scan lists discovered devices, and btmgmt info shows controller status rather than SDP records.

Service Discovery Protocol data is about discovering the services a Bluetooth device offers and how to access them. The tool designed to fetch and display SDP records from remote devices is sdptool. It queries the device’s SDP server and prints the service records, including UUIDs, service names, and port/protocol details, which is exactly what SDP output represents. For example, using sdptool to browse a device will reveal its available services. Other tools are used for general device discovery or controller information and do not output SDP data: hcitool lescan scans for LE advertisements, bluetoothctl scan lists discovered devices, and btmgmt info shows controller status rather than SDP records.