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Questions and Answers
Which of the following best describes the Biba model of access control?
Which of the following best describes the Biba model of access control?
- It focuses on both confidentiality and data integrity equally.
- It prioritizes data integrity over confidentiality. (correct)
- It prioritizes confidentiality over data integrity.
- It does not prioritize either confidentiality or data integrity.
What is the simple integrity axiom in the Biba model?
What is the simple integrity axiom in the Biba model?
- No read down.
- No write up.
- Anyone accessing a resource can only write its contents to one classified at the same level or lower.
- The level of access granted to an individual must be no lower than the classification of the resource. (correct)
What is the * integrity axiom in the Biba model?
What is the * integrity axiom in the Biba model?
- No read down.
- The level of access granted to an individual must be no lower than the classification of the resource.
- No write up.
- Anyone accessing a resource can only write its contents to one classified at the same level or lower. (correct)
Study Notes
Biba Model of Access Control
- The Biba model is a mandatory access control model that focuses on the integrity of data rather than confidentiality
- It is a discretionary access control model that prioritizes the integrity of data over confidentiality and availability
Integrity Axioms in the Biba Model
- The simple integrity axiom states that a subject at a certain level of integrity cannot write to an object of a higher level of integrity
- The * integrity axiom states that a subject at a certain level of integrity can read an object at the same or higher level of integrity, but cannot write to an object at a higher level of integrity
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Description
Test your knowledge of the Biba model of access control with this quiz. Learn about its focus on data integrity and how it differs from the Bell-LaPadula model. Explore the two security rules of Biba and assess your understanding of its integrity axioms.
