Question 41 : 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
1. i
2. i and iii
3. ii and iii
4. iii and iv
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Question 42 : Which of the following objects require protection ?
1. CPU
2. Printers
3. Motherboard
4. All of the mentioned
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Question 43 : Which is an unsolvable problem in access-matrix ?
1. Owner override
2. Brute force
3. Access denied
4. Confinement
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Question 44 : Which two rights allow a process to change the entries in a column ?
1. copy and transfer
2. copy and owner
3. owner and transfer
4. deny and copy
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Question 45 : What are the three copyrights ?
1. copy
2. transfer
3. limited copy
4. all of the mentioned
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Question 46 : Who can add new rights and remove some rights ?
1. copy
2. transfer
3. limited copy
4. owner
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Question 47 : What are the three additional operations to change the contents of the access-matrix ?
1. copy
2. Owner
3. control
4. all of the mentioned
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Question 48 : What does access matrix represent ?
1. Rows-Domains, Columns-Objects
2. Rows-Objects, Columns-Domains
3. Rows-Access List, Columns-Domains
4. Rows-Domains, Columns-Access list
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Question 49 : What is Domain ?
1. Domain = Set of all objects
2. It is a collection of protection policies
3. Domain= set of access-rights
4. None of the mentioned
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Question 50 : What is meaning of right-set ?
1. It is a subset consist of read and write
2. It is a subset of all valid operations that can be performed on the object
3. It is a subset consist of read,write and execute
4. None of the mentioned
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