GK

1. First Come First Serve(FCFS) is
   (A) Preemptive scheduling
   (B) Non-preemptive scheduling
   (C) deadline scheduling
   (D) None of the above
   
   Answer

   (B) Non-preemptive scheduling
2. A variant of deadlock is called….
   (A) Mutex lock
   (B) Live lock
   (C) Both(A) & (B)
   (D) None of the above
   
   Answer

   (B) Live lock
3. ….. is a system call that causes the caller to block.
   (A) Await
   (B) Sleep
   (C) Wakeup
   (D) None of the above
   
   Answer

   (B) Sleep
4. …… is the most used method to communicate over a network.
   (A) Sockets
   (B) Semaphores
   (C) Pipes
   (D) None of the above
   
   Answer

   (A) Sockets
5. …… is the process of switching of CPU from one thread to another.
   (A) Process handling
   (B) interrupt handling
   (C) Context switching
   (D) None of the above
   
   Answer

   (C) Context switching
6. Which of the following is an example of Real Time Operating Systems?
   (A) Lynx OS
   (B) Mac OS
   (C) UNIX
   (D) None of the above
   
   Answer

   (A) Lynx OS
7. Which of the following is a function of an OS?
   (A) Process Management
   (B) I/O Management
   (C) Memory Management
   (D) All of the above
   
   Answer

   (D) All of the above
8. In DOS, ECHO command is used to….
   (A) display message on screen
   (B) display the contents of a text file
   (C) Both (A) & (B)
   (D) None of the above
   
   Answer

   (A) display message on screen
9. Which of the following is an external command of DOS?
   (A) CALL
   (B) SHIFT
   (C) TITLE
   (D) FORMAT
   
   Answer

   (D) FORMAT
10. …… is a technique used to speed up communication with slow devices.
    (A) Fragmentation
    (B) Caching
    (C) Segmentation
    (D) None of the above
    
    Answer

    (B) Caching