JAC 12th Computer Science Most Important Question 2024 [Download PDF]

झारखंड अधिविधि परिषद, रांची के जैक बोर्ड ने कक्षा 12वीं की बोर्ड परीक्षा शुरू कर दी है। इस साल, 12 फरवरी 2024 को दूसरी पाली में Science/ Commerce के Computer Science का परीक्षा आयोजित किया गया है। परीक्षा में उपस्थित होने वाले छात्र Computer Science का परीक्षा देने वाले हैं। वे छात्र यहां से VVI Questions प्राप्त कर सकते हैं। इन प्रश्नो की सहायता से आप अपने परीक्षा से अच्छे अंको से अव्वल हो सकते हैं। कृपया आप अपनी Comment Box में अपने प्रतिक्रिया जरूर शेयर करें।

JAC 12th Computer Science Most Important Questions 2024

Class	Subject	Full Marks	Time
12	Computer Science	30+50=80	3 Hrs.

1. C++ ………… is a/an language.

(1) English
(2) High level
(3) Assembly
(4) None of these

2. main () is a/an

(1) Literal
(2) Function
(3) Identifier
(4) None of these

3. A set of logical operators is

(1) +,-,*,/,%
(2) &&,::,!
(3) ?:
(4) None of these

4. Void data type represents

(1) int data
(2) float data
(3) empty data
(4) none of these

5. In C++, cin, cout, cerr are predefined stream

(1) operator
(2) function
(3) object
(4) none of these

6. ‘A’ is an example of

(1) integer literal
(2) string literal
(3) character literal
(4) bool literal

7. A variable that holds memory address is called

(1) Array
(2) Class
(3) Function
(4) Pointer

8. The prefix increment / decrement operators follow the rule

(1) change-then-use
(2) use-then-change
(3) save-and-delete
(4) none of these

9. The order of evolution of the expression A/BC-D+E will be

(1) *,/,+,一
(2) *,-,*,/
(3)/,*,-,*
(4) None of these

10. Which of the following concepts means wrapping up of data and functions together?

(1) Inheritance
(2) Encapsulation
(3) Construction
(4) None of these

11. Which of the following is not the member of class?

(1) Static function
(2) Friend function
(3) Constructor function
(4) None of these

12. The default access specifier in a class is

(1) private
(2) public
(3) protected
(4) none of these

13. In C++………… which operation is used for dynamic memory allocation?

(1) Scope resolution
(2) Conditional
(3) new
(4) Relational

14. Which of the following approaches is adapted by object-oriented programming?

(1) Bottom-up
(2) Top-down
(3) Left-right
(4) None of these

15. Private members of a class are accessed by

(1) Member function
(2) Friend function
(3) Both (1) and (2)
(4) None of these

16. An inline function is

(1) Prefixed with keyword inline
(2) Saves execution time
(3) Available with calling function
(4) All of these

17. Destructor has the same name as the constructor and it is preceded by

(1) !
(2) #
(3) ~
(4) $

18. When a class contains objects of other class types as its member then it is called

(1) Inheritance Graph
(2) Container ship
(3) Derivation graph
(4) None of these

19. Which of the following is a multilevel data structure?

(1) Stack
(2) Tree
(3) Queue
(4) None of these

20. Queue follows

(1) FIFO
(2) LIFO
(3) GIGO
(4) None of these

21. An insertion in a stack is called

(1) Pop
(2) Push
(3) Link
(4) None of these

22. Base class is

(1) Normal class
(2) Abnormal class
(3) Child class
(4) None of these

23. If a class X inherits from class Y, then Y ………. is called of X.

(1) Super class
(2) Sub-class
(3) Abstract class
(4) None of these

24. In public inheritance, a protected data member of the base class will be treated in a derived class as

(1) Public
(2) Private
(3) Protected
(4) None of these

25. A stream is a sequence of

(1) Loops
(2) Bytes
(3) Files
(4) None of these

26. Fstream class supports

(1) Input operation
(2) Output operation
(3) Input/output operation
(4) None of these

27. The rows of a relation are known as

(1) Attribute
(2) Tuples
(3) Columns
(4) None of these

28. SQL means

(1) Simple Query Language
(2) Structured Query Language
(3) Standard Query Language
(4) None of these

29. Duplication of data is known as

(1) Default
(2) Delta
(3) Data Redundancy
(4) None of these

30. A Boolean expression that always results in false is called

(1) Fallacy
(2) Tautology
(3) Stack
(4) None of these