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CBSE Class 12 Computer Science Exam Pattern

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Weightage of marks over different dimensions of the question paper shall be as follows:

A. Weightage to different topics/content units:

Sl noTopicsMarks
1
Review of C++ covered in Class XI 12
2
Object Oriented Programming in C++ 12
3
Data Structure & Pointers 14
4
Data File Handling in C++ 6
5
Databases and SQL 8
6
Boolean Algebra 8
7
Communication and Open Source Concepts 10
Total70

B. Weightage to different forms of questions:

Sl noForms of QuestionsMarks for each question
No of questions
Total marks
1Very Short Answer questions (VSA) 01
09
09
2Short answer questions - Type I (SA I) 02
13
26
3Short answer questions - Type II (SA II) 03
05
15
4Long answer questions (LA) 04
05
20
Total  
32
70

C. Scheme of Options: There will be no overall choice. All questions are compulsory.

D. Difficulty level of questions:

Sl noEstimated difficulty levelPercentage of marks 
1
Easy
15%
2
Average
70%
3
Difficult
15%
  • Based on the above design, two sets of sample papers along with their blue prints and Marking schemes have been included in this document.
  • About 20% weightage has been assigned to questions testing higher order thinking (HOT) skills of learners.

Blue Print:

S.NoUnitVSA (1 mark)SA I (2 marks)SA II (3 marks)LA (4 marks)Total
1Review of C++ covered in Class XI1 (1)
8 (4)
3 (1)
 12 (6)
2  Object Oriented Programming in C++     
a) Introduction to OOP using C++  2 (1)
 4 (1)
6 (2)
b) Constructor & Destructor  2 (1)
  2 (1)
c) Inheritance    4 (1)
4 (1)
3    Data Structure & Pointers      
a) Address Calculation   3 (1)
 3 (1)
b) Static Allocation of Objects  2 (1)
3 (1)
 5 (2)
c) Dynamic Allocation of Objects    4 (1)
4 (1)
d) Infix & Postfix Expressions  2 (1)
  2 (1)
4
   
Data File Handling in C++      
a) Fundamentals of File Handling 1 (1)
   1 (1)
b) Text File  2 (1)
  2 (1)
c) Binary Files   3 (1)
 3 (1)
5  Databases and SQL      
a) Database Concepts  2 (1)
  2 (1)
b) Structured Query Language  2 (1)
 4 (1)
6 (2)
6    Boolean Algebra      
a) Introduction to Boolean Algebra & Laws  2 (1)
  2 (1)
b) SOP & POS 1 (1)
   1 (1)
c) Karnaugh Map   3 (1)
 3 (1)
d) Basic Logic Gates  2 (1)
  2 (1)
7     Communication & Open Source Concepts      
a) Introduction to Networking 2 (2)
   2 (2)
b) Media,Devices,Topologies & Protocols    4 (1)
4 (1)
c) Security 2 (2)
   2 (2)
d) Webservers1 (1)
   1 (1)
e) Open Source Terminologies 1 (1)
   1 (1)
Total9 (9)26 (13)15 (5)20 (5)70 (32)

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