The Trusted Computer Security Evaluation Criteria book (TCSEC) defines two types of assurance.
What are they? (Choose two)

A.
Life cycle assurance

B.
Quality assurance

C.
System architecture assurance

D.
OS hardening methods and assurance

E.
Operational assurance

Explanation:
Life cycle assurance ensures that a trusted computer base (TCB) is designed and developed with controlled standards that act to enforce protection at each stage in the system’s life cycle. Operational assurance are concerned with the basic features and architecture of a system.