ATrusted Computing Base (TCB) is defined as:
A.
The total combination of protection mechanisms within a computer system that are trusted to
enforce a security policy.
B.
A system that employs the necessary hardware and software assurance measures to enable
processing multiple levels of classified or sensitive information to occur.
C.
The boundary separating the trusted mechanisms from the remainder of the system.
D.
A trusted path that permits a user to access resources.
Explanation:
* Answer “The boundary separating the trusted mechanisms from the remainder of the system” is
the security perimeter. * Answer “A trusted path that permits a user to access resources” is the
definition of a trusted path. * Answer “A system that employs the necessary hardware and software
assurance measures to enable processing multiple levels of classified or sensitive information to
occur” is the definition of a trusted computer system.