Operating System Questions – Set 12

Dear Aspirants,
Welcome to the Professional Knowledge Section in Affairscloud.com. Here we are providing sample questions in Operating System. It will be useful for the IBPS SO IT officer and SBI Assistant Manager(System). We have also included some important questions that are repeatedly asked in previous exams.

1. Which of the following is a feature of the Windows operating system that causes predetermined system actions when certain media is inserted. ?
   A. BIOS
   B. Flat file
   C. Auto Run
   D. All of these
   E. None of these
   
   Answer & Explanation

   C. Auto Run
   Explanation:
   Auto Run is a feature of the Windows operating system that causes predetermined system actions when certain media is inserted
   
   
2. Which of the following is a register in a computer processor that contains the address of the instruction being executed at the current time?
   A. Device Driver
   B. Scheduler
   C. Dispatcher
   D. Program Counter
   E. None of these
   
   Answer & Explanation

   D. Program Counter
   Explanation:
   The Program Counter is a register in a computer processor that contains the address of the instruction being executed at the current time.
   
   
3. To load an operating system into the computer’s main memory or Random Access Memory (RAM) is known as _______
   A. Waiting time
   B. Response time
   C. Turnaround time
   D. Throughput
   E. Boot
   
   Answer & Explanation

   E. Boot
   Explanation:
   To load an operating system into the computer’s main memory or random access memory (RAM) is known as Boot.
   
   
4. This is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource is known as?
   A. Scheduling
   B. Deadlock
   C. Parsing
   D. Running
   E. None of these
   
   Answer & Explanation

   B. Deadlock
   Explanation:
   Deadlock is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource.
   
   
5. Which of the following is the central component of most computer operating systems.?
   A. Scheduling
   B. Deadlock
   C. Parsing
   D. Running
   E. Kernel
   
   Answer & Explanation

   E. Kernel
   Explanation:
   The central component of most computer operating systems is Kernel. 
   
   
6. Which of the following is the module that gives control of the CPU to the process selected by the short-time scheduler?
   A. Interrupt
   B. Dispatcher
   C. Scheduler
   D. Running
   E. Kernel
   
   Answer & Explanation

   B. Dispatcher
   Explanation:
   Dispatcher is the module that gives control of the CPU to the process selected by the short-time scheduler
   
   
7. Which of the following is a data structure maintained by job scheduler software?
   A. job queue
   B. ready queue
   C. process queue
   D. execution queue
   E. None of the
   
   Answer & Explanation

   A. job queue
   Explanation:
   A job queue, is a data structure maintained by job scheduler software containing jobs to run
   
   
8. Which is a set of all processes that are waiting to be scheduled on a core?
   A. job queue
   B. ready queue
   C. process queue
   D. execution queue
   E. None of these
   
   Answer & Explanation

   B. ready queue
   Explanation:
   Ready queue is a set of all processes that are waiting to be scheduled on a core
   
   
9. This is used to create a new process, which becomes the child process of the caller is known as?
   A. Thread Cancellation
   B. Mutual Exclusion
   C. Signal Handling
   D. System Call
   E. Both (B) and (C)
   
   Answer & Explanation

   D. System Call
   Explanation:
   System Call, fork() is used to create a new process, which becomes the child process of the caller
   
   
10. Which of the following is a program that prevents simultaneous access to a shared resource?
    A. Thread Cancellation
    B. Mutual Exclusion
    C. Signal Handling
    D. System Call
    E. Both (B) and (C)
    
    Answer & Explanation

    B. Mutual Exclusion
    Explanation:
    Mutual Exclusion is a program that prevents simultaneous access to a shared resource