Question id 71 - IFR Communications - ATPL - Airline Transport Pilot license

One-way communication from aircraft to stations or locations on the surface of the earth
One-way communication from stations or locations on the surface of the earth
Two-way communication between aircraft and stations or locations on the surface of the earth
Any communication from aircraft to ground station requiring handling by the Aeronautical Fixed Telecommunication Network (AFTN)

Training tests and timed exam simulations ATPL - Airline Transport Pilot license