Question id 112 - Flight performance and planning - EASA Drone Quiz A2

Talking through a private, encrypted radio channel
Using hand signals instead of speaking to avoid noise
A communication technique where a message is sent, received, understood, and verbally confirmed by the receiver to ensure zero misunderstandings
Limiting communication strictly to the moments before take-off and after landing

Training tests and timed exam simulations EASA Drone Quiz A2