CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020

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Read CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 below. Find downloadable Class 12 Computer Science previous year question papers complete with answers, aligned with the 2026-27 assessment patterns of CBSE, NCERT, and KVS. Reviewing these sets helps every Class 12 learner check their readiness for upcoming exams.

CBSE Class 12 Computer Science Exam Question Papers

Want to know how school exams are structured? Solving these Class 12 Computer Science question papers helps you learn the exact marking scheme and exam format. Practice under a timer to boost your speed and accuracy. Grab the full CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 to start checking your progress right now.

Class 12 Computer Science Question Paper PDF Download

SECTION A
[Only for candidates, who opted for C++]
1. (a) Identify the valid keywords in C++ from the following :
(i) If
(ii) for
(iii) case
(iv) Object
(v) struct
(vi) sub
(vii) float
(viii) My_class
(b) Write the names of the correct header files, which must be included in the following C++ code to compile the code successfully :
void main()
{
int X = random(10);
int Y = random(20);
cout<<"sum of "<<X<<" and "<<Y<<" = "<<X+Y<<endl;
}
(c) Rewrite the following C++ program after removing any/all
syntactical errors with each correction underlined :
Note : Assume all required header files are already included in the
program.
void main()
{
cout<<"Enter two integers";
cin>>A>>B;
if A <= B
A += B;
B –= 5;
else
{
B = B + A;
A – 5 = A;
}
cout<<A<<" : "<< B << Endl;
}
 
(d) Find and write the output of the following C++ program code :
 
Note : Assume all required header files are already included in the program.
void ChangeVal(int *M, int N)
{
for(int i=0;i<N ; i++)
{
if (*M%5 == 0)
*M /= 5;
if (*M%3 == 0)
*M /= 3;
M++;
}
}
void main()
{
int Val[]={25,8,75,12};
ChangeVal(Val,4);
for(int i=0;i<4; i++)
cout<<Val[i]<<"*";
cout<<endl;
}
(e) Find and write the output of the following C++ program code :
 
Note : Assume all required header files are already included in the program.
struct Product
{
int X, Y;
};
void Change(Product &P)
{
P.X += 5; P.Y –= 5;
}
void Multiply(int P1, int P2)
{
cout<<"First = "<<P1<<" & Second = "<<P2<<endl;
cout<<"Product = "<<P1*P2<<endl;
}
void main()
{
Product P[] = {{7,10},{10,7},{7,7}};
for(int i=0; i<3; i++)
{
Change(P[i]);
Multiply(P[i].X, P[i].Y);
}
}
 
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CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 & Previous Year Question Papers for Class 12 Computer Science

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FAQs

Where can I download the official PDF for CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020?

The CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Computer Science.

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Can I access CBSE Class 12 Computer Science Old Compartment Question Paper Solved 2020 in different languages?

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