SEE/Class 10 Computer Science Examination Paper 2068

SEE/Class 10 Computer Science Examination Paper 2068

SEE Examination 2068

Computer Science

 

Group “A”

Computer Fundamental [22 marks]

 

1. Answer the following questions. (2x5=10)
    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 indicated. (1x2=2)

     i. (108)₁₀ into binary

 

 

  ii. (173)₈ into binary

 

b. Binary calculation. (1x2=2)

i. 111 x11

ii.1010-10+11

    

3. Match the following. (0.5x4=2)
Group A                    Group B
a. Microwave          Multimedia
b. Volt guard           Protocol
c. Sound card          Unguided media
d. TCP/IP                 Power protection devices
                                Guided media

                                        
4. Select the best answers. (0.5x4=2)
    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. (0.5x4=2)

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.

1.   Match the following. (0.5x4=2)

a.   Bps             

b.   MAN          

c.    FTP             

d.   URL             

Group B-Database (10 marks)

 

7. Answer the following questions. (2x3=6)
a. What is database?

b. What is data sorting?

c. What is a form?

 

8. Select the best answers.  (0.5x4=2)
     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. (0.5x4=2)

Group A                     Group B

a.   Indexing                Limits the value

b.   Report                   Data type

c.    Validation Rule     Error message

d.   Hyper link              Final output

Search fast

 

Group C- Programming (18 marks)

10. Answer the following questions. (2x5=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. (0.5x4=2)
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 given program. (2)

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. (1x2=2)
DECLARE FUNCTION count(N$)
INPUT “Enter a word”; N$
C= Count(N$)

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

a. List any two library functions used in the above program.

     b. 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.  (3)

      b. Write a program using FUNCTION…...END FUNCTION to get a word from the user and        print it in reverse order. (3)

      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. (3)

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