When is a single period used in flight plan routes in FDIO messages?

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Multiple Choice

When is a single period used in flight plan routes in FDIO messages?

Explanation:
In FDIO route strings, a single period acts as a boundary marker between elements of different types. That means you place the period between unlike elements, such as a fix followed by an airway or a VOR followed by a fix, to clearly signal where one element ends and the next begins. This helps the system parse the route without ambiguity. If two elements are the same type (two fixes, two airways, etc.), a period isn’t needed between them. The route starts and ends without a leading or trailing period.

In FDIO route strings, a single period acts as a boundary marker between elements of different types. That means you place the period between unlike elements, such as a fix followed by an airway or a VOR followed by a fix, to clearly signal where one element ends and the next begins. This helps the system parse the route without ambiguity. If two elements are the same type (two fixes, two airways, etc.), a period isn’t needed between them. The route starts and ends without a leading or trailing period.

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