Computer Science Multiple Choice Questions (MCQ) and Answers - Set 01

Computer Science Multiple Choice Questions (MCQ) and Answers - Set 01 

(Useful towards placement preparation)

1. Implementing polymorphism where by object belonging to different classes can respond to the same message in different ways.
(a) late binding         

(b)dynamic binding   

(c) dynamically created object

(d) virtual function

 

2.Data structure used in recursion

(a)Stack           

(b) Queue

(c)Linked List           

(d)all the above

 

3.   ERP stands for

(a) Entrepreneur Related Processing     

(b) Enterprise Resource Planning

(c)  Enterprise Related Processing          

(d) None of the above

4. Which of the following involves a context switch

(a) system call          

(b) privileged instruction   

(c) floating point exception

(d) all the above

        

 5. Semaphore is used for

 (a) Synchronization  

 (b) dead-lock avoidance     

 (c) black box           

 (d) none

 

  6. Which of the following is not a natural member of the set
   (a) UNIX            

   (b)PICK           

   (c)LAN                    

   (d) VMS

        

7. Virtual address are translated to physical address by
(a) the process                 

(b) operating system         

(c) MMU                

(d) All of the above

 

8. Which type of operating system unix is?

(a) Multiuser             

(b) Single user   

 (c) Multiuser, Timesharing

(d) Multitasking, Timesharing, Multi-user

 

9. For 1 MB memory, the number of address lines required,

(a) 16                     

(b)20               

(c)22                      

(d) 24

 

10.Ingress is
(a) An operating system            

(b) A structured query language

(c) Programming language       

 (d) RDBMS

 

11. SCSI stands for

(a) System Configuration System Interface 

(b) Small Computers System Interface

(c) Small Computers System Interconnect  

(d) None of the  above

 

12. Modern RDBMS perform the following the following functions except
(a)   Force column values in one table to match any of the values in a column of another table
(b)   Automatically replicate data on another server
(c)   Automatically create new indexes based on query history
(d)   Prevent unauthorized users from accessing data at the firls level

 

13. Purpose of Program Counter in a Micro Processor is
(a) To store address of TOS(Top Of Stack)
(b) To store address of next instruction to be executed.
(c) Count the number of instructions.
(d) To store base address of the stack.

 

14. The status of the Kernel is
(a) task                    

(b) process               

(c) not defined          

(d) none of the above.

 

15. Memory allocation of variables declared in a program is
(a) allocated in RAM.         

(b) allocated in ROM.
(c) allocated on stack.               

(d) assigned to registers.

 

16. A software that allows a personal computer to pretend as a computer terminal is
(a) terminal adapter  

(b) bulletin board      

(c) modem       

(d) terminal emulation

 

17. Windows 95 supports
(a) Multiuser                     

(b) n tasks               

(c) Both    (a) & (b)

(d) None of the two

18. What are device drivers used for
(a) The device that drives the hardware.     

(b) To provide software for enabling the hardware.

(c) both of the above         

(d) none of the above

19. Which of the following API is used to hide a window

(a) ShowWindow       

(b) EnableWindow     

(c) MoveWindow    

(d) SetWindowPlacement

 

20. What was the first name given to Java Programming Language.
(a) Oak – Java          

(b) Small Talk          

(c) Oak            

(d) None of the above

21. In which layer does Routers work?

(a) Physical layer      

(b) Network Layer     

(c) Data Link Layer   

(d) All the above

 

22. Which of the following is the most powerful type of computer?

(a) Super-micro        

(b) Superconductor   

 (c) Supercomputer   

(d) Megaframe

 

23. Coded entries which are used to gain access to a computer system are called

(a) Entry codes         

(b) Passwords        

(c) security commands              

(d) Code words

 

24.       A term associated with the comparison of processing speeds of different computer system is

(a) EFTS          

(b) MPG           

(c) MIPS           

(d) CPS

 

25. Human beings are referred to as Homosapiens. Which device is called silicosapiens?

(a) Monitor               

(b) Hardware            

(c) robot          

(d) computer

 

 Answer Key

 

    1.  (d)          2.  (a)      3. (b)       4. (a)       5. (a)

  6.  (c)            7.  (c)      8.  (d)      9.  (b)     10.  (d)

  11.  (c)         12.  (a)    13. (b)     14.  (b)   15. (c)

 16.  (d)           17.  (a)    18. (b)     19. (a)     20. (c)    

 21.  (b)           22.  (c)    23.  (b)    24.  (c)    25.  (d)