Karnataka 2nd PUC Model Question Paper 2025 for Computer Science

ACADEMIC YEAR

2025

Karnataka
Board
Model Paper

SUBJECT: COMPUTER SCIENCE (41) BLUE PRINT FOR MQP-1 CLASS : II PUC
Question type Number of questions Marks
MCQ 15 15
FILL IN THE BLANKS
5 5
(DATA BASE CONCEPTS) SA-1
SHORT ANSWERS SA-2 04(07) 08 (14)
SHORT ANSWER SA-3 04(07) 12 (21)
LONG ANSWERS 04(07) 20(35)
LONG ANSWER (HOTS) 02(03) 10(15)
TOTAL 34(44) 70(105)
Remember (37%) Understand (29%) Apply(16%) HOTS (18%)
periods

Marks
No. of

SL. Chapter/ Content
NO. domain/ Unit/ Theme MCQ SA-1 SA-2 SA-3 LA MCQ SA-1 SA-2 SA-3 LA MCQ SA-1 SA-2 SA-3 LA MCQ SA-1 SA-2 SA-3 LA

Typical configuration
1 5 4 1 1
of Computer system
2 Boolean algebra 10 8 1 1 1

3 Logic Gates 5 3 1 1

4 Data structures 15 14 1 1 1 1

5 OOP concepts 5 5 1

6 Classes and objects 6 6 1 1

7 Function Overloading 6 6 1 1
Constructors and
8 8 8 1 1 1
Destructors
9 Inheritance 7 6 1 1

10 Pointers 5 4 1 1

11 Data File handling 6 5 1 1

12 Database concepts 12 11 1 3 2 1 1

13 SQL commands 11 10 1 1 1 1

14 Networking Concepts 9 7 1 1 1
Internet and Open
15 5 4 1 1
source concepts
16 Web Designing 5 4 1 1
TOTAL HOURS AND
120 105 7 3 6 3 20 3 2 6 9 10 1 0 2 9 5 4 0 0 0 15
MARKS

GOVERNMENT OF KARNATAKA
KARNATAKA SCHOOL EXAMINATION AND ASSESSMENT BOARD
MODEL QUESTION PAPER-1
Class : II PUC Academic Year: 2024-25
Subject: Computer Science (41) Maximum marks : 70
Time : 03 Hrs. No. of Questions: 44
Instructions:
(a) The question paper has Five parts namely A,B,C,D and E.
(b) For Part-A questions, only the first written answers will be considered for
evaluation.
(c) For question having diagram alternate questions are given at the end of the
question paper in a separate section (Part-E) for visually challenged students.
PART – A
Answer ALL the questions, each question carries ONE mark. 20 x 1 = 20
I Select the correct answer from the choices given.
1. How many bits of data USB can transmit ?
(a) 127 bits (b) 12 megabits (c) 16 megabits (d) 128 bits

2. Dual of the expression X + 0 = X is
(a) 𝑋 · 1 = 𝑋 (b) 𝑋 · 0 = 𝑋 (c) X + 1 = X (d) X + 1 = 1

3. Given the logic diagram the output is

(a) 0 (b) 1, 0 (c) 1 (d) 0, 0

4. In one dimensional array if LB = 0 and UB = 10 then array size is
(a) 9 (b) -1 (c) 12 (d) 11

5. Identify the reason for the error in the following program segment
class temp
{
private : int x;
};

void main( )
{
temp t;
cout<<”enter the value of X”;
cin>> t.x;
}
(a) A non member function trying to access protected data member
(b) Member function trying to access private data member
(c) A non member function trying to access public data member
(d) The main function trying to access private data member

6. Assertion (A) : Very efficient code can be generated using inline function.
Reason (R) : Inline function has complex data structure.
(a) Both A and R are false (b) A is true and R is false
(c) A is false and R is true (d) Both A and R are true

7. The symbol used with destructor

(a) . (b) :: (c) ~ (d)
*
8. The combination of any two types of inheritance is called
(a) Single level inheritance (b) Hybrid inheritance
(c) Multiple inheritance (d) Hierarchical inheritance

9. Given int *ptr, x = 100; which is the correct way to assign address of x variable to the pointer
(a) ptr = x; (b) ptr = *x (c) ptr = &x (d) x = ptr;

10. Which of the following is the DBMS software ?
(a) HTML (b)XML (c) DHTML (d) MySQL

11. Identify the DML command
(a) INSERT (b) CREATE (c) DROP (d) ALTER

12. Correct expansion form of IP
(a) Intranet Protocol (b) Internet Protocol
(c) Interconnect Protocol (d) Information Protocol

13. An example for Half Duplex communication mode
(a) Walkie talkie (b) Television (c) Telephone (d) Mobile

14. The nonprofit organization created for the purpose of supporting free software movement
(a) OSI (b) W3C (c) FSF (d) GNU

15. Which one of the following is not a scripting language?
(a) Python (b) XML Script (c) PHP script (d) Java Script

II Fill in the blanks choosing the appropriate word/words from those given in the brackets.
(Secondary, oval, redundancy, datamining, relational, meta data )

16. Data about data is called ________________

17. Data duplication is called _______________

18. ______________ model organize the data in table form

19. The symbol is used to represent attribute in ER diagram is _____________

20. The candidate key which is not currently selected as primary key is called ________________ key

PART-B

III Answer any FOUR questions. Each question carries TWO marks: 4 x 2 =8

21. Prove involution law
22. Realize AND using NOR gate.
23. Mention any two features of parameterized constructor.
24. Differentiate between read( ) and write( )
25. Write any two features of Database System.
26. Explain any two logical operator in SQL.
27. Write the purpose of MAX() and MIN() group functions in SQL.

PART-C

IV Answer any FOUR questions. Each question carries THREE marks: 4 x 3 = 12

28. Write a note on Cache memory
29. What is primitive data structure? Explain any two operations on primitive data structure.
30. Define array of pointer. Give suitable example.
31. Write the purpose of seek directions in C++ data file handling
32. Differentiate between manual and electronic data processing
33. Identify the type of e-commerce in the following cases
i. Buying of goods by the distributer from the manufacturer
ii. Buying of goods from Amazon web site
iii. Buying of used car from a owner

34. Write HTML code to create the following table.
Number of classes held 120
Number of classes attended 100

PART-D
V Answer any FOUR questions, each question carries Five marks: 4 x 5 = 20

35. Write an algorithm for enqueue operation.
36. Explain the operations on stack.
37. Mention any three advantages and two disadvantages of OOP.
38. What is function overloading? Explain the need for function overloading.
39. Write the rules for constructor.
40. What is inheritance? Explain Hierarchical and Multiple inheritance
41. Explain different network topologies.

VI Answer any TWO questions, each question carries FIVE marks 2 x 5 = 10

42. Given the Boolean function F(A,B,C, D) =∑(0,2,6,7,8,9,10,11,13 ),
Reduce it using K-map.

43. Define a class time with following members and conditions
i. Data members : hour, minute, seconds
ii. Member functions: getdata() and output()
iii. Define member functions inside the class to input and output hour, minute
and seconds.

44. Write the SQL query for the following questions based on given employee table

Empid Name Age Salary
101 AAA 35 25000
102 BBB 28 18000
103 CCC 30 10000

i) Develop the table with above fields
ii) Display the structure of the table
iii) Find total number of employees
iv) Find the sum of all employee’s salary
v) Display all employee records with age>=15

PART-E

VII (For Visually Challenged Students only)

3. What is the output of the two input NAND gate for the inputs X = 1 and Y =0?

(a) 0 (b) 1, 0 (c) 1 (d) 1, 1

*************

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