JAC 12th Computer Science Exam 2025 : Important ऑब्जेक्टिव और सब्जेक्टिव प्रश्‍न उत्तर के साथ, परीक्षा से पहले रटलो

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JAC बोर्ड कक्षा 12 कंप्यूटर विज्ञान परीक्षा 03 मार्च 2025 को होगी। परीक्षा में अच्छे अंक पाने के लिए सबसे महत्वपूर्ण ऑब्जेक्टिव और सब्जेक्टिव प्रश्नों का संकलन यहां दिया गया है। यह प्रश्न बैंक पिछले वर्षों के पेपर और विशेषज्ञों द्वारा तैयार किए गए चुनिंदा सवालों पर आधारित है।

ऑब्जेक्टिव प्रश्नों में MCQs, Fill in the Blanks और सही-गलत प्रकार के सवाल शामिल हैं, जो परीक्षा में बार-बार पूछे जाते हैं। वहीं, सब्जेक्टिव प्रश्नों में 2, 3, 5 और 8 अंकों के विस्तृत उत्तर सहित महत्वपूर्ण सवाल दिए गए हैं। इससे परीक्षा पैटर्न को समझने और बेहतर तैयारी में मदद मिलेगी।

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JAC Board 12th Computer Science Important Question Answer 2025

Multiple Choice Questions :-

1. C++ is developed by

(a) Dennis Ritchie

(b) Ken Thompson

(d) Bjarne Stroustrup

Ans. (d) Bjarne Stroustrup

2. String Terminator character is

(a) '\o'

(b) '\n'

(d) None Of These

Ans. (a) '\o'

3. DBMS stands for

(a) Database Management System

(b) Database Manual System

(d) None of These

Ans. (a) Database Management System

4. The smallest individual unit in

(a) Semicolon

(b) Data Type

(d) Keyword

Ans. (c) Token

5. The process of finding the location of the particular element in the array is called.

(a) Traversal

(b) Searching

(d) None of These

Ans. (b) Searching

6. The Boolean expression A•(B+C)=AB+AC is

(a) Associative law

(b) Commutative law

(d) Distributive law

Ans. (d) Distributive law

7. Destructor name is preceded by

(a) !

(b) $

(d) ~

Ans. (d) ~

8. The term 'attribute' refers to a

(a) Table

(b) Row

(d) Relation

Ans. (d) Relation

9. Main is a/an

(a) Object

(b) Function

(d) None of These

Ans. (b) Function

10. F stream class is used for

(a) Input operation

(b) Output operation

(d) None of These

Ans. (c) Input/Output operation

11. A set of logical operators is

(a) + - * / %

(b) ? :

(d) None of These

Ans. (d) None of These

12. Pointer is a

(a) variable that holds address of other variable

(b) Pointer name is preceded by *

(d) All of these

Ans. (d) All of these

13. STACK follows

(a) GIGO Technique

(b) FIFO Technique

(d) None of These

Ans. (c) LIFO Technique

14. When several classes inherit the properties of same common class it is called.

(a) Single inheritance

(b) Multiple inheritance

(d) None of These

Ans. (c) Hierarchical inheritance

15. People standing in a line is an example of

(a) STACK

(b) QUEUE

(d) Linked list

Ans. (b) QUEUE

16. _________ is a Browser

(a) C++

(b) Telnet

(d) Cookies

Ans. (c) Firefox

17. Main is a/an

(a) Object

(b) Function

(d) None of These

Ans. (b) Function

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

(a) !

(b) $

(d) ~

Ans. (d) ~

19. A set of logical operators is

(a) + - * / %

(b) ? :

(d) &&, ||, !

Ans. (d) &&, ||, !

20. Which of the following is not a feature of C++?

(a) Operator overloading

(b) Inheritance

(d) Reflection

Ans. (d) Reflection

JAC Board 12th Important Subjective Questions :–

Q1. Write a note on Fibre Optics Cable. (2009)

Q2. What do you understand by Modem? (2009, 2015, 2017)

Q3. Write the mode of transmission. (2009)

Q4. Define ‘Band’. (2009)

Q5. Write abbreviation of: (2009)

(a) O.S.I.

(b) I.S.O

Q6. What is the difference between LAN and WAN? (2010, 2012, 2013)

Q7. What are the components required for networking? (2010, 2015, 2017)

Q8. Give the full form of the following:

WATS, URL, HTTP & www (2010)

Q9. What do you mean by topology? What are the most popular topology? (2010)

Q10. What are the various physical media used for data transmission in a network system ? (2011)

Q11. Write two advantage and disadvantage of star topology. (2011)

Q12. What is a server? What is its role?(2011)

Q13. Define the term Bandwidth. Give unit of Bandwidth. (2011)

Q14. What is the purpose of using a MODEM? (2012)

Q15. Give the advantages of email and World Wide Web services provided by INTERNET. (2012)

Q16. Why do we need to network our system?(2012)

Q17. Write the two advantages and disadvantages of the following topologies in network. (2012)

(a) BUS

(b) TREE

Q18. What is world wide web and what are its advantages? (2012)

Q19. What are the facilities provided by this server in a network environment? (2013)

Q20. Explain in brief the networking needs and goals. (2013)

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JAC Board Class 12 Study Material

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