TRB-CS-VIP ONLINE COACHING CENTER (QUIZ-2)OPERATING SYSTEM

TRB-CS-Master online coaching center (QUIZ-7)Operating System

Quiz

 

1. In analyzing the compilation of PL/I program, the description "resolving symbolic address (labels) and generating machine language" is associated with
   1.   Assembly and output
   2.   Code generation
   3.   Storage assignment
   4.   Syntax analysis
2. Round-robin scheduling
   
   1.   allows interactive tasks quicker access to the processor
   2.   is quite complex to implement
   3.   gives each task the same chance at the processor
   4.   allows processor-bound tasks more time in the processor
3. What is the name of the system which deals with the running of the actual computer and not with the programming problems?
   
   1.   Operating system
   2.   Systems program
   3.   Object program
   4.   Source program
4. What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?
   
   1.   8
   2.   1
   3.   16
   4.   0
5. Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and
   
   1.   hold and wait
   2.   deadlock avoidance
   3.   race around condition
   4.   buffer overflow
6. If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system?
   
   1.   FORMAT command
   2.   DIR command
   3.   VER command
   4.   DISK command
7. A partitioned data set is most used for
   
   1.   a program or source library
   2.   storing program data
   3.   storing backup information
   4.   storing ISAM files
8. Page-map table is
   
   1.   A data file
   2.   A directory
   3.   Used for address translation
   4.   All of the above
9. The main function of the dispatcher (the portion of the process scheduler) is
   
   1.   swapping a process to the disk
   2.   assigning ready process to the CPU
   3.   suspending some of the processes when the CPU load is high
   4.   bring processes from the disk to the main memory
10. The errors that can be pointed out by the compiler are
    
    1.   Syntax errors
    2.   Semantic errors
    3.   Logical errors
    4.   Internal errors
11. When a computer is first turned on or restarted, a special type of absolute loader is executed, called a
    
    1.   "Compile and Go" loader
    2.   Boot loader
    3.   Bootstrap loader
    4.   Relating loader
12. Which, of the following checks, cannot be carried out on the input data to a system?
    
    1.   consistency check
    2.   Syntax check
    3.   Range check
    4.   All of the above
13. A program that converts a high-level language program to a set of instructions that can run on a computer is called a
    
    1.   Compiler
    2.   Debugger
    3.   Editor
    4.   All of the above
14. Which of the following is characteristic of an operating system?
    
    1.   resource management
    2.   error recovery
    3.   memory management
    4.   All the above
15. In MS-DOS, relocatable object files and load modules have extensions
    
    1.   .OBJ and .COM or .EXE, respectively
    2.   .COM and .OBJ, respectively
    3.   .EXE and .OBJ, respectively
    4.   .DAS and .EXE, respectively
16. The state transition initiated by the user process itself in an operating system is
    
    1.   block
    2.   dispatch
    3.   wake up
    4.   timer run out
17. 142 . Which of the following program is not a utility?
    
    1.   Debugger
    2.   Editor
    3.   Spooler
    4.   All of the above
18. The function(s) of file system is (are):
    
    1.   to provide complete file naming freedom to the users and to permit controlled sharing of files
    2.   to provide for long and short term storage of files with appropriate economic tradeoffs.
    3.   to provide security against loss of information due to system failure
    4.   all of the above
19. A public key encryption system
    
    1.   allows anyone to decode the transmission
    2.   allows only the correct sender to decode the data
    3.   allows only the correct receiver to decode the data
    4.   does not encode the data before transmitting it
20. . Feed back queue
    
    1.   are very easy to implement
    2.   dispatch tasks according to execution characteristics
    3.   are used to favor real-time tasks
    4.   require manual intervention to implement properly
21. . In which addressing mode the operand is given explicitly in the instruction?
    
    1.   absolute mode
    2.   immediate mode
    3.   indirect mode
    4.   index mode
22. . The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:
    
    1.   time sharing
    2.   time out
    3.   time domain
    4.   FIFO
23. Capacity planning
    
    1.   requires detailed system performance information
    2.   is independent of the operating system
    3.   does not depend on the monitoring tools available
    4.   is not needed in small installations
24. . Poor response times are caused by
    
    1.   Processor busy
    2.   High I/O rate
    3.   High paging rates
    4.   Any of the above
25. Link encryption
    
    1.   is more secure than end-to-end encryption
    2.   is less secure than end-to-end encryption
    3.   can not be used in a public network
    4.   is used only to debug