FUNDAMENTALS OF COMPUTER

APPLICATION SYSTEM SOFTWARE

SYSTEMS SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of the operating system can control which users have access to specific data or resources of a computer system?
A
Memory management
B
File and disk management
C
User management
D
User interface
Explanation: 

Detailed explanation-1: -This is an access control method in which owners or administrators of the protected system, data or resource set the policies defining who or what is authorized to access the resource. Many of these systems enable administrators to limit the propagation of access rights.

Detailed explanation-2: -In general, commercial operating systems use discretionary access control (DAC) with access control list (ACL) implementation to provide protection to system resources. Among these are most MS Windows operating systems (XP, NT, etc.) and UNIX/LINUX varieties.

Detailed explanation-3: -In its most basic sense, an operating system is responsible for controlling access to system resources. These resources include the processor, memory, files and devices, and the network. Most critically, the operating system needs to protect itself from applications.

Detailed explanation-4: -Mandatory Access Control (MAC) is system-enforced access control based on a subject’s clearance and an object’s labels.

Detailed explanation-5: -In computer systems, authorization rules are part of an IT discipline called Identity and Access Management (IAM). Within IAM, authorization and authentication help system managers to control who has access to system resources and set client privileges.

There is 1 question to complete.