Which field carries the Aircraft ID in FDIO messages?

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Multiple Choice

Which field carries the Aircraft ID in FDIO messages?

Explanation:
In FDIO messages, each field has a specific role, and the Aircraft ID is the identifier that ties every message to a particular aircraft. That ID is placed in the field that comes immediately after the initial information field. This early placement is important because the system needs to know which aircraft a message belongs to before it processes the rest of the data. Other fields handle elements like the message type, timing, position, or status, so they aren’t used for the Aircraft ID. So the field that follows the first field is the one carrying the Aircraft ID.

In FDIO messages, each field has a specific role, and the Aircraft ID is the identifier that ties every message to a particular aircraft. That ID is placed in the field that comes immediately after the initial information field. This early placement is important because the system needs to know which aircraft a message belongs to before it processes the rest of the data. Other fields handle elements like the message type, timing, position, or status, so they aren’t used for the Aircraft ID. So the field that follows the first field is the one carrying the Aircraft ID.

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