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SSCP · Question #188
SSCP Question #188: Real Exam Question with Answer & Explanation
The correct answer is D: Bell-LaPadula Model. The Bell-LaPadula Model was the first mathematical model of a multi-level security policy, primarily concerned with preventing unauthorized access to classified information.
Submitted by takeshi77· Apr 18, 2026Access Controls
Question
What is the name of the first mathematical model of a multi-level security policy used to define the concept of a secure state, the modes of access, and rules for granting access?
Options
- AClark and Wilson Model
- BHarrison-Ruzzo-Ullman Model
- CRivest and Shamir Model
- DBell-LaPadula Model
Explanation
The Bell-LaPadula Model was the first mathematical model of a multi-level security policy, primarily concerned with preventing unauthorized access to classified information.
Common mistakes.
- A. The Clark and Wilson Model focuses on data integrity, which came after Bell-LaPadula.
- B. The Harrison-Ruzzo-Ullman (HRU) Model is a general access control model that came later than Bell-LaPadula.
- C. Rivest and Shamir are associated with the RSA algorithm for public-key cryptography, not with the first multi-level security model.
Concept tested. Historical security models (Bell-LaPadula)
Topics
#Security Models#Bell-LaPadula Model#Access Control Models#Confidentiality Models
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