SEE/Class 10 Computer Science Examination Paper 2070

SEE/Class 10 Computer Science Examination Paper 2070

SEE Examination 2070

Computer Science

Group “A”

Computer Fundamental [22 marks]

 

1. Answer the following questions.  (2×5=10)

a. What is network topology? Write any one advantage of star topology.

b. Give any two advantages of E-mail over traditional mail.

c. List any two main aims of formulating cyber law in Nepal.

d. Give any two symptoms of virus attack.

e. Give the importance of UPS to the computer system.

 

2. a. Convert as instructed. (1x2=2)

i. (BED)₁₆ into binary   

ii. (1010111)₂ into octal

 

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

i. 1010 *10

ii. 10101 ÷ 11

 

3. Match the following. (0.5×4=2)

Group A                         Group B

a.   Combination           Guided Media

of several media    

b.   POP                           Power Protection Device

c.    UTP                            Multimedia

d.   UPS                           Protocol used in e-mail

CD-ROM

 

 

4. Choose the correct answer. (0.5×4=2)

a. Which of the following is an audio output device?

i. Microphone ii. Speaker   iii. Monitor      iv. Printer

b. Which one is not a type of virus?

i. Message Carrying virus       ii. Boot sector virus

iii. System virus                       iv. Special Purpose Application Infector

c. Which one is bounded media?

i. Fiber optics          ii. Microwave              iii. Infrared      iv. Laser

d. Which one is an operating system software?

i. MS-Word     ii. MS-Excel    iii. Firefox       iv. MS-DOS

 

5.       Give an appropriate technical term for the following. (0.5×4=2)

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

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

c.       A company that provides internet service.

d.      A computer in a network which can provide services to other computer.

 

6. Write the full forms of. (0.5×4=2)

a.   TCP/IP        

b.   LAN             

c.    UPS             

d.   FTP             

 

 

Group B Database (10 marks)

7. Answer the following. (2×3=6)

a. Define data and information.

b. What is report? Give its importance.

c. Name any four data types that can be defined in MS-Access.

 

8.Choose the best answer. (0.5×4=2)

a. The columns in database tables are called:

i Record         ii. Field           iii. Report        iv. Memo

b. Which is suitable data type to store video?

i. Text              ii. Number       iii. Hyperlink   iv. OLE object

c. Text data type can store maximum of ___characters

i. 250               ii. 350              iii. 255            iv. 355

d. Which of the following is database application?

i. MS-Word     ii. MS-Access            iii. MS-Excel   iv. QBASIC

 

 

9. Match the following. (0.5×4=2)

Group A                         Group B

a.   Indexing Data        Size up to 1 GB

b.   Form                      Column of datasheet

c.    Field                      Row on a datasheet

d.   OLE object             Searching fast

                                    Graphical interface for data entry

 

Group C Programming (18 marks)

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

a. What is a variable? 

b. Name any two data types used in C language.                                     
c. Give the functions of:

i NAME AS: The NAME statement renames a file on a disk.

ii. CLOSE: The CLOSE statement is used to close one or all open files.

 

11. Rewrite the following program after correcting the bugs. (0.5x4=2)

DECLARE SUB Series ()

DLS

EXECUTE Series

END

SUB Series

REM to generate 2 2 4 6 10…. up to 10^th term

P=2

Q=2

FOR Ctr=1 TO 5

DISPALY P, Q,

P=P+Q

Q=P+Q

NEXT Ctr

END Series ()

 

 

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

DECLARE FUNCTION AREA (L, B)

LET L=10

LET B=5

PRINT “The area =”; AREA (L, B)

END

FUNCTION AREA (L, B)

A=L*B

AREA=A

END FUNCTION

 

 

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

DECLARE FUNCTION Sum (A, B)

INPUT “Enter first number:”; A

INPUT “Enter second number:”; B

PRINT “The sum of the two number=”; Sum (A, B)

END

FUNCTION SUM (A, B)

S=A+B

Sum=S

END FUNCTION

a. List the numerical variables used in the above program.

b. Will the program run if the first line (i.e. DECLARE….) is deleted?

 

14.  a. Write a program using Function…..End Function to get the temperature in Celsius from the user and then print the temperature in Fahrenheit. (hint: F=9/5*c+ 32).         (3)

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

c. A sequential data file called “Marks.dat” contains Name, English, Nepali, Math, and Science Fields. Write a program to display all the contents of that data file.  (3)

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