SEE/Class 10 Computer Science Examination Paper 2072 

SEE/Class10 Computer Science Examination Paper 2072

SEE Examination 2072

Computer Science

Group “A”

Computer Fundamental [22 marks]

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

a. Define LAN topology. Draw star topology.

b. Give any two symptoms of virus attacks.

c. Write one advantage and one disadvantage of multimedia.

d. Write any two ways of protecting computer software.

e. Write any two services of internet.

 

2. a. Convert as indicated. (1x2=2)

i. (208)₁₀ into Binary

ii.(104)₈ into decimal

 

 

b) Perform the binary calculations. (1x2=2)

i. 1011+1101

ii.   110*11

 

3.Match the following. (0.5x2=4)

Group A                      Group B

a.   Microwave              Power protection device

b.   UTP                         Protocol

c.    UPS                         unguided media            

d.   SMTP                      Internet

                                    Guided media

 

 

4. State whether the following statements are true or false. (0.5x2=4)

a.   Walky-talky is an example of full duplex mode.

b.   Data transfer rate is higher in optical fiber cable than in co-axial cable.

c.    The computer security refers to hardware security only.

d.   Sound Card is one of the components of multimedia.

 

5. Write the appropriate technical terms of the following. (0.5x2=4)

a.   A program that can disinfect a file from virus. 

b.   A person who steals or destroys other’s data, information, files and program.  

c.    A company which provides the internet facilities.

d.   A computer which provides services to other computers in a network.

 

6. Write the full forms of. (0.5x2=4)

a.   URL             

b.   HTTP           

c.    LAN             

d.   MODEM     

 

 

Group B Database (10 Marks)

7. Answer the following questions. (1x3=3)

a. Write any four data types used in MS-ACCESS.

b. Define database with example.

c. What is query?

 

8. State whether the following statements are true or false. (0.5x2=4)

a.   A query is used to select fields and records from only one table.

b.   MS-ACCESS is DBMS software.

c.    Index decreases the speed of query and sort operations.

d.   Data in primary key has to be unique and not null.

 

9. Match the following. (0.5x2=4)

Group A                      Group B

a.   OLE                            Data entry

b.   Validation Rule        Stores data

c.    Form                          Limits the value

d.   Indexing                    Data type

Easy to search

 

 

Group C Programming (18 Marks)

10. Answer the following questions. (1x3=3)

a. What is procedure?

b. Write any two data types used in ‘c’ language.

c. Write down the functions of the following statements:

i.     OPEN

ii.    MKDIR

 

 

11.Re-write the following program after correcting the bugs. (0.5x2=4)

FUNCTION SUM (m, n)

Rem to print sum of two numbers

a=6

b=7

DISPLAY SUM (a, b)

END

FUNCTION SUM (m, n)

S= m+n

S=SUM

END SUM

 

12.Write the output of the following program. (2)

DECLARE FUNCTION Interest (p, t, r)

CLS

LET p=100

LET t=2

LET r=5

LET d=Interest (p, t, r)

PRINT “The simple interest=”; d

END

FUNCTION Interest (p, t, r)

Interest = (p* t* r)/100

END FUNCTION

 

13. Study the following program and answer the following questions. (1x2=2)

DECLARE FUNCTION Prod(N)

INPUT “Any number”; N

X=Prod(N)

PRINT X

END

FUNCTION Prod(N)

F=1

FOR K=1 TO N

F=F*K

NEXT K

Prod=F

END FUNCTION

 

a. Write the name of the user-defined function used in the above program.

b. Name the loop in the above program.

 

14. a. Write a program using SUB… END SUB to display the reverse of input-string. (3)

b. Write a program using FUNCTION…END FUNCTION to find the area of the triangle. (3)

c. A sequential data file called “Marks.dat” contains NAME, AGE, CITY, and TELEPHONE fields. Write a program to display all the contents of the data file. (3)

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