DFW Security Identification Display Area (SIDA) Pocketbook Training Practice Exam

In airport security terms, any area where entry is controlled or prohibited unless you have the proper authorization is a restricted area. This includes places that are physically locked, fenced, or clearly posted with signs and security requirements. The broad idea is to identify zones where access is limited for security reasons, not just specific spots. The other examples are types of restricted areas with more specific rules: one is a zone around runways and supports where entry requires special clearance; another is an area inside the secure perimeter where passengers must pass screening to access; and another is a portion where ID badges must be worn and displayed. Those are all particular restricted zones, whereas the general term that covers any area with limited entry is restricted area.