Which acronym refers to a system enabling intercommunication and data exchange in the cabin?

• A. Centers for Disease Control
• B. Crew Advisory Telephone System
• C. Cabin Intercommunication Data System
• D. Computer Based Training

Answer: (C)

Cabin intercommunication and data exchange in the cabin is enabled by a dedicated onboard network that links crew stations, allows interphone calls, and supports data transfers across cabin areas. The Cabin Intercommunication Data System is exactly this, providing the backbone for crew calls, messages, and status information between cabin locations (and often with the flight deck). The other terms refer to different things: the Centers for Disease Control is a health agency, Computer Based Training is educational software, and the Crew Advisory Telephone System is a separate communications line not used for the integrated cabin data exchange system.