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- Question
A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as
Options- A. semaphore
- B. mutual exclusion
- C. multiprogramming
- D. multitasking
- E. None of the above
- Correct Answer
- mutual exclusion
- 1. Object code
Options- A. is ready to execute
- B. is the output of compilers, but not assemblers
- C. must be "loaded" before execution
- D. must be rewritten before execution
- E. None of the above Discuss
- 2. Part of a program where the shared memory is accessed and which should be executed invisibly, is called
Options- A. semaphores
- B. directory
- C. critical section
- D. mutual exclusion
- E. None of the above Discuss
- 3. What is the name of the operating system which was originally designed by scientists and engineers for use by scientists and engineers?
Options- A. XENIX
- B. UNIX
- C. OS/2
- D. MS DOS
- E. None of the above Discuss
- 4. The most common security failure is
Options- A. carelessness by users
- B. depending on passwords
- C. too much emphasis on preventing physical access
- D. insufficient technology used to prevent breaches
- E. None of the above Discuss
- 5. Which of the following statement is true.
Options- A. The LRU algorithm pages out pages that have been used recently
- B. Thrashing is a natural consequence of virtual memory systems.
- C. Seek analysis is used for analysing control-unit busy problems.
- D. All of the above
- E. None of the above Discuss
- 6. Object modules generated by assemblers that contain unresolved external references are resolved for two or more object modules by a/an
Options- A. operating system
- B. loader
- C. linker
- D. compiler
- E. None of the above Discuss
- 7. The operating system of a computer serves as a software interface between the user and
Options- A. hardware
- B. peripheral
- C. memory
- D. screen
- E. None of the above Discuss
- 8. Which are the most important features of Microsoft Windows program?
Options- A. Windows
- B. Pull-down menus
- C. Icons
- D. All of the above
- E. None of the above Discuss
- 9. Link encryption
Options- A. is more secure than end-to-end encryption
- B. is less secure than end-to-end encryption
- C. can not be used in a public network
- D. is used only to debug
- E. None of the above Discuss
- 10. The term 'polling' in a computer means a process by which a computer system
Options- A. detects/corrects errors
- B. multiplexes the inputs and updates the memory accordingly
- C. decides correct alternative by analysing several ones
- D. inquires to see if a terminal has any transaction to send
- E. None of the above Discuss
Operating Systems Concepts problems
Search Results
Correct Answer: must be "loaded" before execution
Correct Answer: critical section
Correct Answer: UNIX
Correct Answer: carelessness by users
Correct Answer: Seek analysis is used for analysing control-unit busy problems.
Correct Answer: linker
Correct Answer: hardware
Correct Answer: All of the above
Correct Answer: is less secure than end-to-end encryption
Correct Answer: inquires to see if a terminal has any transaction to send
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