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Important 5 Mark Creative Questions (New Syllabus 2020)

12th Standard EM

Reg.No. :
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Computer Science

Time : 01:00:00 Hrs
Total Marks : 80

Part A

16 x 5 = 80
1. Explain the concept accesscontrol.

2. Differentiate Algorithm and program

3. Write a program in python to display the following output.
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

4. Write a program in python to display the following output.
(i) 5 5 5 5 5
4 4 4 4
3 3 3
2 2
1
(ii) 1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

5. Write a python program to find HCF of two numbers using recursion.

6. Write a python program to display the number of vowels and consonants in the given string.

7. Write a program to create a list of numbers in the range 1 to 10. Then delete all the odd numbers from the list and print the final list.

8. Write a program to create a list of numbers in the range 1 to 10. Then delete all the even numbers from the list and print the final list.

9. Write a program to calculate area and circumference of a circle.

10. Explain ALTER command in detail.

11. Write a program to read a specific column in a CSV file.

12. How will you write the CSV file with custom denote characters? Explain with an example

13. Write a python program to execute the following C++ program.
/*. To check whether the number is palindrome or not using while Ioop.*/
// Now select File- > New in Notepad and type the C++ program
#include < iostream >
using namespace std;
intmain ( )
{
int n, num, digit, rev = 0;
cout<<  "Enter a positive number: ";
cin >>num;
n= num;
while(num)
{digit = num % 10;
rev = (rev " 10) + digit;
num = num / 10; }
cout<< II The reverse of the number is: " << rev < if(n == rev)
cout< < II The number is a palindrome";
else
cout << II The number is not a palindrome";
return 0;
}
// Save this file as pali_cpp.cpp

14. Write a python program to execute the following C++ program.
Transpose of a matrix(2 D array) C++ program:
#include < iostream >
using namespace std;
int main ( )
{
int a[3][3], i, j;
for(i=0; i< 3; i++)
{
for(j=0; j<3; j++)
{cout<< "enter the value for
array["<< i+ 1<< "]"<< " ["<< j+ 1<< "] :";
cin >>a[i][j];
}
}
system ("cIs");
cout<< "\n\nOriginal Array\n";
for(i=0; i<3; i++) {
for(j=0; j<3; j++ )
cout<< a[i][j]«' ';
cout<< endl; }
cout<< "\n\n The Transpose of Matrix\n";
for (int i = 0; i < 3; i++)

for (int j = 0; j < 3; j++)
cout<< a[j][i]<< ' ';
cout<< endl;

return 0;
}
// Save this file as trans_cpp.cpp

15. Write a python program to execute the following C++ program
To implement Multilevel Inheritance:
// C++ program to implement Multilevel Inheritance
// Now select File ⟶New in Notepad and type the C++ program
c++ Program.
#include < iostream >
using namespace std;
// base class
class Vehicle
{
public:
Vehicle ( )
{
cout<< "This is a Vehicle" << endl;
}
};
class threeWheeler: public Vehicle
{ public:
three Wheeler ( )
{
cout << "Objects with 3 wheels are vehicles" << endl;
}
};
// sub class derived from two base classes
class Auto: public threeWheeler{
public:
Auto ( )

cout<< "Auto has 3 Wheels"<< endl;
};
// main function
int main ( )
{
//creating object of sub class will invoke the constructor of base classes
Auto obj;
return 0;
}
// Save this file as inheri_cpp.cpp

16. Write the key differences between Histogram and bar graph.