Which type of information is transmitted through the downlink?

• A. Payload
• B. Telemetry
• C. Command and Control
• D. Status

Answer: (A)

When a drone talks back to the operator, the downlink carries the data produced by the drone’s onboard sensors—the payload. This is the actual information gathered during the mission, such as images, video, or sensor readings, that you want to review on the ground. Telemetry and status describe the drone’s condition and flight state (battery, position, attitude) and are often sent as part of the downlink, but they’re not the mission data itself. Command and control is sent from the ground to the drone to steer and manage the flight, not to deliver collected data. So the payload is the information best described as being transmitted downlink.