CBSE Class 12 Computer Science Revision Worksheet

Read and download free pdf of CBSE Class 12 Computer Science Revision Worksheet. Download printable Computer Science Class 12 Worksheets in pdf format, CBSE Class 12 Computer Science All Chapters Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Computer Science Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

All Chapters Computer Science Worksheet for Class 12

Class 12 Computer Science students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Computer Science will be very useful for tests and exams and help you to score better marks

Class 12 Computer Science All Chapters Worksheet Pdf

Revision Tour
 
1. What is the difference between Global and Local Variables? Give an example to illustrate the same.
 
2. Illustrate the use of inline function in C++ with the help of an example.
 
3. Differentiate between Run Time Error and Syntax Error. Also give suitable examples of each in C++.
 
4. Differentiate between a Logical and Syntax error. Also give suitable examples of each in C++.
 
5. What is the difference between #define and const? Explain with suitable example.
 
6. What is the purpose of using typedef command in C++? Explain with suitable example.
 
7. What is the difference between type casting and automatic type conversion? Explain with suitable example.
 
8. What is the difference between Call By Value and Call By Reference in a user defined function in C++? Give an example to illustrate the same.
 
9. What is the difference between Actual parameter and Formal parameter? Give an example in C++ to illustrate both type of parameters.
 
10. Name the Header files that shall be needed for successful compilation of the following C++ code:
 
void main( )
{ char Text[40];
strcat(Text, ”AISSES”);
puts(Text); }
 
11. Name the Header files that shall be needed for successful compilation of the following C++
code:
void main() {
char String[] = “Peace”;
cout << setw(20) <
 
12. Name the Header files that shall be needed for successful compilation of the following C++
code:
void main() {
char Str[30], ch; cin>>Str;
cin>>Str; ch = tolower(Str[0]);
cout << ”The first Character of “ << Str << ” = “ << ch; }
 
13. Re Write the following program after removing the syntactical error(s), if any. Underline each correction.
#include
constint Divider 5;
void main(){
Number = 15;
for (int Count = 1, Count<=5; Count++, Number-=3)
if ( Number%Divider == 0 )
cout<
cout << endl;
else
cout<
}
 
14. Find the Output of the following program:
 
#include
#include
#include
void Change(char Msg[], int Len)
{
for (int Count=0; Count
{
if (islower(Msg[Count]))
Msg[Count] = toupper(Msg[Count]);
else if (isupper(Msg[Count]))
Msg[Count] = tolower(Msg[Count]);
else if (isdigit(Msg[Count]))
Msg[Count] = Msg[Count] + 1;
elseMsg[Count] = '*';
}
}
void main()
{
char Message[] = "2018 All The Best Class 12";
int Size = strlen(Message);
Change(Message, Size);
cout<< Message <
for (int C = 0, R = Size-1; C <= Size/2; C++, R--)
{
char Temp = Message[C];
Message[C] = Message[R];
Message[R] = Temp;
}
cout<
}
 
15. Observe the following program GAME.CPP carefully, if the value of Num entered by the user is 3, choose the correct possible output(s) from the options from (i) to (iv), and justify your opinion.

#include

#include

void main()
{
randomize(); intNum, Rndnum; cin>>Num;
Rndnum = random(Num) + 5;
for (int N = 1; N <= Rndnum; N++)
cout<< N<< " ";
}
Output Options: (i) 1 2 3 4 (ii) 1 2 3 4 5 6 7 8 9 (iii) 1 2 3 4 5 6 (iv) 1234567
 
16. Find the Output of the following program:
 
#include
int x = 10;
void pass(int&a, int b, int&c)
{
int x = 4; c += x;
a *= ::x; b += c;
}
void main()
{
int y = 1, x = 2;
pass(y, ::x, x); cout<< x << ':' << y << ':' << ::x; cout<
pass(::x, x, y); cout<< x << ':' << y << ':' << ::x;
}
 
17. Find the Output of the following program:
 
#include
void main()
{
long NUM=1234543;
int F=0, S=0;
do{
int Rem = NUM%10;
if (Rem % 2 != 0)
F+=R;
else S+=R;
NUM /=10;
}while (NUM>0);
cout<< F-S;}
 
18. Rewrite the following program after removing syntactic error(s) if any. Underline each correction:
 
#include
const int MAX 10;
void main() {
int Numbers{MAX};
Numbers = {20,50,10,30,40};
for(Loc = Max – 1; Loc>= 0; Loc--)
cout>> Number[Loc];
 
19. Find the output of the following program:
 
#include
voidWithdef(int HisNum = 30)
{
for (int I=20; I<=HisNum; I+=5)
cout<< I << ",";
cout<
}
void Control(int &MyNum)
{
MyNum+=10;
Withdef(MyNum);
}
void main()
{
intYourNum=20;
Control(YourNum);
Withdef();
cout<<"Number=" <
}
 
20. In the following program what is the expected value of MyMarks from Options (i) to (iv) given below. Justify your answer.
 
#include
#include
void main() {
randomize(); int Marks[] = {99,92,94,96,93,95}, MyMarks;
MyMarks = Marks[1+random(2)];
cout<
}
Output Options : (i) 99 (ii) 94 (iii) 96 (iv) None of the above.


Please click on below link to download CBSE Class 12 Computer Science Revision Worksheet

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All Chapters CBSE Class 12 Computer Science Worksheet

The above practice worksheet for All Chapters has been designed as per the current syllabus for Class 12 Computer Science released by CBSE. Students studying in Class 12 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 12 Computer Science on a daily basis. All the latest practice worksheets with solutions have been developed for Computer Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 12 Computer Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 12 Computer Science to develop the Computer Science Class 12 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 12 Computer Science designed by our teachers. After solving these you should also refer to Class 12 Computer Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 12 Computer Science which you can use to further make yourself better in Computer Science.

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