RISING NEPAL SECONDARY BOARDING SCHOOL

Class:- 10 SECOND TERMINAL EXAMINATION 2076 F.M:25

Time:- 1hr. Sub:- Computer Concept P.M:06

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

All the questions are compulsory.

  1. Match the following: 3

Stealth virus smallest unit of information

Polymorphic virus object in database designed for printing

Byte primary building blocks of the Access

Bit virus that infects files and boot records.

Report a combination of 8 bits

Table virus that can change its appearance

  1. Give the appropriate technical term for the following. 3
  2. A field property that determines what data can be entered in the field.
  3. Software that controls the organization, storage, management and retrieval of data in a database.
  4. A positional number system that utilizes the symbols 0 and 1.
  5. ……protects you PC against power surges and spikes.
  6. …..infect executable program files having extension .exe or .com.
  7. Cyber law of Nepal was enacted in Nepal in ………..
  8. Answer the following questions. (any 5 only) 10
  9. What is cyberlaw? Why is it important?
  10. State the functions of UPS.
  11. What is a number system? Write the types of number systems.
  12. What is a database management system?
  13. Differentiate between local and global variables.
  14. What is Web browser? Give examples.
  15. Write the full forms of the following abbreviations. 1
  16. DBMS b. WWW
  17. Write the output of the given program. 2

DECLARE SUB result()

CALL result

END

SUB result

N=6

C=1

WHILE C<=6

PRINT N

N= N*10+5

C=C+1

WEND

END SUB

  1. Rewrite the program eliminating the errors. 2

DECLARATION SUB area()

CALL program

END

SUB area

INPUT “Enter a radius”; r

a= 3.141 x r2

PRINT “Area of a circle”; a

STOP SUB

  1. Write a program using sub procedure to calculate the area of a rectangle. 2
  2. Conversion and binary arithmetic operations. 2
  3. 110100+11101 b. 110011111001

c. 2EA16 = (?) 10 d. 15210 = (?)2

The End