Which term refers to having multiple backup systems to prevent a lost link?

Which term refers to having multiple backup systems to prevent a lost link?

• A. Redundant and backup systems
• B. FCC
• C. Wave Propagation
• D. Datalink

Answer: (A)

Having multiple backup paths for the control link is redundancy. This means the system is designed with more than one way to keep the drone connected and controllable, so if one link fails, another takes over or a backup mechanism engages. In practice, redundancy might involve a second receiver, an alternate frequency or channel, and automatic fail-safes that preserve control or return-to-home behavior. This concept directly addresses preventing a lost link by ensuring there isn’t a single point of failure. The other terms don’t describe this idea. FCC is the federal regulator, not a method for ensuring link availability. Wave Propagation explains how radio signals travel, not how to maintain multiple backups. Datalink refers to the data link itself, not the presence of multiple backup systems to prevent loss of the link.

Having multiple backup paths for the control link is redundancy. This means the system is designed with more than one way to keep the drone connected and controllable, so if one link fails, another takes over or a backup mechanism engages. In practice, redundancy might involve a second receiver, an alternate frequency or channel, and automatic fail-safes that preserve control or return-to-home behavior. This concept directly addresses preventing a lost link by ensuring there isn’t a single point of failure.

The other terms don’t describe this idea. FCC is the federal regulator, not a method for ensuring link availability. Wave Propagation explains how radio signals travel, not how to maintain multiple backups. Datalink refers to the data link itself, not the presence of multiple backup systems to prevent loss of the link.