CERTIFIED-IN-CYBERSECURITY Question #294: Real Exam Question with Answer & Explanation

Question

What is created when permissions are listed for individual users on a Unix file system?

Options

• AAn access control list
• BAn access control entry
• CRole-based access control
• DMandatory access control

Explanation

When individual permissions are listed for users on a Unix file system, it creates an access control entry (ACE) for each user (see ISC2 Study Guide, Module 3, under Discretionary Access Control (DAC)). An access control list (ACL) is a list of access control entries that define access permissions for multiple users or groups. Role-based access control (RBAC) and mandatory access control (MAC) are other access control models that govern how access is granted to resources (see ISC2 Study Guide, Module 3, under Role-Based Access Control (RBAC) and Mandatory Access Control (MAC)). RBAC assigns permissions based on predefined roles or job functions, while MAC uses labels and rules to enforce security policies. An access control list is created when permissions are listed for individual users on a Unix file system, as it is a list of access control entries. Role-based access control and mandatory access control are not created when permissions are listed for individual users, as they are models that govern how access is granted to resources.

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