Explain the purpose of a security clearance and need-to-know principle in AFCOMAC data access control.

• A. Clearances grant authorization; need-to-know limits access to information essential for mission, reducing risk of data exposure.
• B. Clearances determine physical access; need-to-know is about time zones.
• C. Clearances are optional; need-to-know is about password length.
• D. Clearances are about network access; need-to-know is about role.

Answer: (A)