Which of the following is NOT one of the Air Force Core Functions?

The correct answer highlights that "Cybersecurity" is not recognized as one of the Air Force Core Functions. The Air Force Core Functions encompass essential missions that underpin the service's capabilities and strategic objectives. These core functions include Global Strike, which emphasizes the ability to project power through strategic bombing and deterrence; Air Superiority, which involves establishing and maintaining control of the air to ensure operational success; and Rapid Global Mobility, which facilitates the swift transport of forces and equipment across the globe.

While cybersecurity is a vital aspect of modern military operations and supports many Air Force missions, it is not categorized as a core function on its own. The emphasis on cybersecurity within the Air Force is more about enabling core functions and protecting information systems rather than serving as a standalone core function. Thus, the distinction lies in the fact that the Air Force Core Functions focus on combat and operational capabilities, while cybersecurity is a supporting effort that underlies all operations in the contemporary security environment.