SLC COMPUTER 2068 QUESTION

SLC COMPUTER 2068 QUESTION

SLC Examination 2068 (2012)

Attempt all the questions.

           

 Computer fundamental (22 marks)

1. Answer the following questions:

   a) Define LAN topology and write any two types of LAN topology.

   b) Write any four services of Internet.

   c) Write any two advantages of multimedia in education field.

   d) Write any two software security measures.

   e) Write any four symptoms that show, computer is infected by computer virus.

2.a. Convert as instructed:

     i) (108)₁₀ into binary                       ii) (173)₈ into  binary

   b. Perform the binary calculation:

     i) 111*11                                        ii) 1010-10+11 

3. Match the following:
        Group A                            Group B
    a) Microwave                      a) Multimedia
    b) Volt guard                      b) Protocol
    c) Sound card                      c) Unguided media
    d) TCP/IP                            d) Power protection devices
                                                e) Guided media

                                               
4. Select the best answers:
    a) Which of the following is not a protocol?
         i) POP    ii) TCP/IP        iii) NOS                       iv) FTP

    b) Which device protects hardware?
         i) UPS    ii) MODEM    iii) Gateway    iv) All of the above

    c) In which communication media data transfer high?
         i) Twisted pair    ii) Co-axial cable         iii) Fiber optics           

iv) Microwave

    d) Which computer virus damages the master boot record?
         i) Macro virus     ii) File virus     iii) New folder virus   

iv) Boot sector virus

5. Write the appropriate technical terms:
     a) The device used to connect PC with telephone line.

     b) The rules that make the network communication possible.

     c) A program that effect the normal functioning of computer.

     d) A main computer in the computer network.

6. Write down the full forms:
   a) bps            b) MAN          c) FTP             d)URL                       

                                    Group B-Database Management(10 marks)
7. Answer the following questions:
    a) What is database? 

b) What is data sorting?

c) What is a form?

8. Select the best answers:
     a) ………………. Is not a data type of MS-Access.
       i) Number             ii) Text             iii) Memo         iv) Form

b) Primary key does not accept ……….
        i) Text             ii) Number       iii) Null value  iv) None of the above
c) ……………….. object of access is used to print formatted data.
        i) Query                      ii) Form                       iii) Report        iv) Table

d) In MS-Access data are stored in ………………
        i) Form                ii) Query          iii) Table          iv) All of the above

9. Match the following:

      Group A                            Group B
   a) Indexing                           a) Limits the value
   b) Report                              b) Data type
   c) Validation Rule                c) Error messages
   d) Hyper link                        d) Final output
                                                e) Search fast

                                    Group C- Programming (18 marks)
10. a) What is loop?

b) List any two data types supported by ‘C’ language.

      c) State the function of the following statement:
             i) EOF                        ii) MKDIR

11. Re-write the given program after correcting the bugs:
CREATE FUNCTION Square(A)
Rem to print square of a number
CLS
Get “a number”; A
CALL square(A)
END

FUNCTION square(A)
Ans=A^2
Square=Ans
END Square(A)

12. Write the output of the following program:

DECLARE SUB Series()

CALL Series

END

SUB Series

A = 2

B = 2

For ctr = 1 to 2

PRINT  A;B;

A =  A + B

B = A + B

Next ctr

END SUB

                            
13. Analyze the program given below and answer the questions:
   Declare function count(N$)
   Input “Enter a word”; R$
   C= Count(R$)

   Print C
   END
   Function count(N$)
   For k=1 to LEN(n$)
   X$=MID$(N$,K,1)
   IF UCASE$(X$)=”A” then
   X=X+1
   End if
   Next K
   Count = X
   End function
i) List any two library functions used in the above program.

ii) Write the use of variable ‘C’ inline 3 [i.e. C=Count(R$)] given in the above program.

14. a) Write a program to calculate the area of four walls using SUB…END SUB.

      b) Write a program using FUNCTION…..END FUNCTION to get a word 

            from the user and print it in reverse order.

      c) A sequential data file called “student.dat” contains some records under the 

             field’s name, English, Nepali and Computer. Write a program to add some

             more records in the same sequential data file.

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