SSCP · Question #292
SSCP Question #292: Real Exam Question with Answer & Explanation
The correct answer is C: Trusted computing base. The Trusted Computing Base (TCB) is the totality of all protection mechanisms within a computer system - encompassing hardware, firmware, and software - that are responsible for enforcing the security policy. It is the complete combination of components that must be trusted to op
Question
What can best be defined as the sum of protection mechanisms inside the computer, including hardware, firmware and software?
Options
- ATrusted system
- BSecurity kernel
- CTrusted computing base
- DSecurity perimeter
Explanation
The Trusted Computing Base (TCB) is the totality of all protection mechanisms within a computer system - encompassing hardware, firmware, and software - that are responsible for enforcing the security policy. It is the complete combination of components that must be trusted to operate correctly. A Security Kernel is a subset of the TCB (just the kernel portion). A Trusted System is a broader concept. The Security Perimeter defines the boundary of the TCB, not the TCB itself.
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