Which data link services are used for automatic position reporting and controller-pilot data link communications?

Which data link services are used for automatic position reporting and controller-pilot data link communications?

• A. ADS-C only for automatic position reporting
• B. CPDLC only for controller-pilot messaging
• C. Weather updates via data link
• D. Data link communications for automatic position reporting and controller-pilot data link communications

Answer: (D)

Data link services used in flight deck operations are twofold: ADS-C provides automatic position reporting to ATC, and CPDLC enables controller-pilot text messaging. The question asks for the data link services used for both automatic position reporting and CPDLC communications, so the option describing data link communications for automatic position reporting and CPDLC captures both functions. ADS-C handles automatic position reports without pilot input, while CPDLC handles the text-based exchanges between controller and pilot. Weather updates via data link are not the primary services for these tasks, and selecting only one service misses the other function.

Data link services used in flight deck operations are twofold: ADS-C provides automatic position reporting to ATC, and CPDLC enables controller-pilot text messaging. The question asks for the data link services used for both automatic position reporting and CPDLC communications, so the option describing data link communications for automatic position reporting and CPDLC captures both functions. ADS-C handles automatic position reports without pilot input, while CPDLC handles the text-based exchanges between controller and pilot. Weather updates via data link are not the primary services for these tasks, and selecting only one service misses the other function.