Final answer:
Not the entire airfield is designated as a controlled area; only specific zones with access and activity restrictions are considered controlled areas, such as SAM sites and areas for military aircraft.
Step-by-step explanation:
The question pertains to whether the entire airfield is designated as a controlled area, which usually refers to a specific zone within an airspace or ground area where certain restrictions are applied for security and safety reasons. An airfield can include various designated zones including confirmed surface-to-air missile (SAM) sites, possible SAM sites, support facilities for processing equipment, and areas for military aircraft, such as those with MIG aircraft. However, not all parts of an airfield are necessarily controlled areas.
Controlled areas are specifically marked zones where entry, extraction, and use are limited to authorized personnel and activities. For instance, while an airfield may include zones that designate where local resources may be extracted, these zones within the airfield may have different levels of control and access restrictions.