Operating system mcqs protection access matrix

 

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Operating system mcqs protection access matrix

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Question 1
What does the access matrix represent?
A
Rows-Domains, Columns-Objects
B
Rows-Objects, Columns-Domains
C
Rows-Access List, Columns-Domains
D
Rows-Domains, Columns-Access list
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Question 2
Which of the following objects require protection?
A
CPU
B
Printers
C
Motherboard
D
All of the mentioned
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Question 3
Which of the following statements are correct? i) Physical separation - in which process use different physical objects like separate printers ii) Physical separation - in which process having different security requirement at different times iii) Logical separation - In which users operate under illusion that no other processes exist iv) Logical separation - In which processes conceal their data and computations
A
i
B
i and iii
C
ii and iii
D
iii and iv
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Question 4
What is meaning of right-set?
A
It is a subset consist of read and write
B
It is a subset of all valid operations that can be performed on the object
C
It is a subset consist of read, write and execute
D
None of the mentioned
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Question 5
In domain structure what is Access-right equal to?
A
Access-right = object-name, rights-set
B
Access-right = read-name, write-set
C
Access-right = read-name, execute-set
D
Access-right = object-name, execute-set
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There are 5 questions to complete.

 

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