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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System Questions & Answers Protection Access Matrix knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What are the various roles of protection? |
| A. | It is used to detect errors which can prevent contamination of system |
| B. | It is used used to accelerate a process |
| C. | It is used to optimize system downtime |
| D. | None of the mentioned |
| Answer» B. It is used used to accelerate a process | |
| 2. |
What is separation in security of Operating systems? |
| A. | To have separate login for different users |
| B. | To have separate Hard disk drive/partition for different users |
| C. | It means keeping one user s objects separate from other users |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
Which of the following objects require protection? |
| A. | CPU |
| B. | Printers |
| C. | Motherboard |
| D. | All of the mentioned |
| Answer» C. Motherboard | |
| 4. |
Which is an unsolvable problem in access-matrix? |
| A. | Owner override |
| B. | Brute force |
| C. | Access denied |
| D. | Confinement |
| Answer» E. | |
| 5. |
Which two rights allow a process to change the entries in a column? |
| A. | copy and transfer |
| B. | copy and owner |
| C. | owner and transfer |
| D. | deny and copy |
| Answer» B. copy and owner | |
| 6. |
What are the three copyrights? |
| A. | copy |
| B. | transfer |
| C. | limited copy |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
Who can add new rights and remove some rights? |
| A. | copy |
| B. | transfer |
| C. | limited copy |
| D. | owner |
| Answer» E. | |
| 8. |
What are the three additional operations to change the contents of the access-matrix? |
| A. | copy |
| B. | Owner |
| C. | control |
| D. | all of the mentioned |
| Answer» E. | |
| 9. |
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 |
| Answer» B. Rows-Objects, Columns-Domains | |
| 10. |
What is Domain? |
| A. | Domain = Set of all objects |
| B. | It is a collection of protection policies |
| C. | Domain= set of access-rights |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
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 |
| Answer» C. It is a subset consist of read, write and execute | |
| 12. |
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 |
| Answer» B. Access-right = read-name, write-set | |