16 Questions
What is the access enforcement mechanism in an operating system?
Reference monitor
Which access control system decentralizes security decisions to resource owners?
Discretionary Access Control (DAC)
What type of access control uses a classifica)on system to describe a resource’s sensi)vity?
Mandatory Access Control (MAC)
What element does the security label in mandatory access control consist of?
Classifica)on and clearance
Which type of access control uses a centrally managed model to provide the highest level of security?
Mandatory Access Control (MAC)
What does the access matrix define in an operating system's access control?
The protec)on domain of a process
What is the main purpose of a user’s compartment in access control?
To define the group of people allowed access
In access control, what does Role-based Access Control (RBAC) primarily focus on?
Restricting access to privileged operations
What is the classical access enforcement mechanism in access control systems called?
Reference monitor
How does authorization differ from authentication in an operating system's access control?
Authorization determines the user's identity before revealing sensitive information
What is the responsibility of the operating system in authentication mechanism?
To create a protection system that authenticates users
Which method of user identification/authentication involves using a registered username and password?
Username / Password
What type of access control allows an administrator to assign privileged functions to specific user accounts or roles?
Mandatory Access Control (MAC)
What is the main emphasis of Role-based Access Control (RBAC)?
"Least privilege" policies implementation
Which method of user identification/authentication involves passing a user's attribute via a designated input device used by the operating system?
Fingerprint/eye retina pattern/signature
What does a reference monitor in access control do?
Takes a request as input and returns a binary response indicating authorization
This quiz summarizes key concepts related to the access control mechanisms in operating systems, including the protection system, reference monitor, and access matrix. It also covers the fundamental types of access control systems: Discretionary Access Control (DAC), Mandatory Access Control (MAC), and Role-Based Access Control.
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