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Operating system mcqs protection memory protection
Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is the principle of least privilege?
Less privileges provide difficulty in executing admin tasks | |
Users can get temporary high privilege access | |
Users should be given just enough privileges to perform their tasks | |
None of the mentioned |
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is all-or-nothing situation for sharing in memory?
Program makes all its data available to be accessed | |
It prohibits access to some | |
It creates rules who can access program memory | |
It separates program memory and data memory |
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is the correct way the segmentation program address is stored?
name, offset | |
start, stop | |
access, rights | |
offset, rights |
Question 3 Explanation:
OS can retrieve the real address via looking for the table then making a simple calculation: address of the name + offset.
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
How is disadvantage of all-or-nothing approach overcome?
Base/Bound | |
Relocation technique | |
Fence method | |
Tagged architecture |
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is the need of protection?
Prevent mischievous violation | |
Prevent and intentional | |
Ensure that each program component uses resources allotted to it only | |
All of the mentioned |
There are 5 questions to complete.