Which TCSEC security class category below specifies trusted recovery
controls?

A.
B3

B.
C2

C.
B2

D.
B1

Explanation:
TCSEC security categories B3 and A1 require the implementation
of trusted recovery. Trusted recovery is the procedures and/or
mechanisms provided to assure that, after an ADP system failure or
other discontinuity, recovery without a protection compromise is
obtaineD. A system failure represents a serious security risk because
security controls may be bypassed when the system is not
functioning normally. Trusted recovery has two primary activities:
preparing for a system failure (backup) and recovering the system.
Source: DoD 5200.28-STD Department of Defense Trusted Computer
System Evaluation Criteria.