Hello Friends,this particular section is well focused on the Frequently asked OS Multiple Choice Questions Answers in various competitive exams.This set of questions are very basic and easily understandable by students.we have kept the questions hardness level to very basic.

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  • Page Replacement Algorithm
  • Memory Management Algorithm
  • Deadlock Prevention Algorithm
  • Disk Scheduling Algorithm

2. What are the two types of Semaphore?

  • Digital Semaphores and Binary Semaphores
  • Analog Semaphores and Octal Semaphores
  • Counting Semaphores and Binary Semaphores
  • Critical Semaphores and System Semaphores

3. What are the requirements for the solution to critical section problem?

  • Mutual Exclusion
  • Progress
  • Bounded Waiting
  • All of Above

4. Which of the following memory unit that processor can access more rapidly

  • Main Memory
  • Virtual Memory
  • Cache memory
  • Read Only Memory

5. Which of the following is the system tool?

  • Backup
  • Disk defragmenter
  • Both of above
  • File

6. When a computer is first turned on or restarted, a special type of absolute loader called ____ is executed

  • Compile and Go loader
  • Boot loader
  •  Bootstrap loader
  • Relating loader

7. In which type of the following OS, the response time is very crucial.

  • Network Operating System
  • Real Time Operating System
  • Batch Operating System
  • Unix Operating System

8. Virtual Memory is

  • Extremely Large Main memory
  • Extremely Large Secondary memory
  • An illusion of extremely large main memory
  • An illusion of extremely large secondary memory

9. Swapping

  • Works best with many small partitions
  • Allows many programs to use memory simultaneously
  • Allows each program in turn to use the memory
  • Does not work with overlaying

10. A program in execution is called

  • A Paging
  • A Process
  • A virtual memory
  • A Demand Page
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