QUE1. Which control in the Critical Security Control framework is most important and why?

QUE2. Is it possible to build a golden key that would allow only authorized users to access encrypted systems or files? Explain and defend your answer.

QUE3. If the perimeter, the idea of having a barrier thus creating a trusted internal environment, is dead then what does that mean for network security? Describe the alternative model and what it means from a defense in depth perspective.