Your question is Working in Classified Areas. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Have you been inside a classified area, and have you performed this task in an unclassified or classified area?
Answer based on your actual experience. Explain the security boundary, authorization required, and how procedures changed between environments without disclosing classified information.