CBSE Class 11 Computer Science Worksheet Set F Solved

1. What is the difference between local variable and global variable? 

2. Write the names of the header files to which the following functions belong:

i) tolower( )     ii) strcmp( )

3. What is the purpose of using a typedef command in C++? Explain with suitable example. 

4. Write definition for a structure STUDREC that stores information about a student such as rollno, name and DOB. The DOB member of STUDREC stores the information day, month and year.

5. How is call-by-value method of function invoking different from call-by-reference method?
Give appropriate examples supporting your answer.

6. Give the output of the following program:
#include
void Execute(int &X, int Y=100)
{int TEMP = X + Y;
X += TEMP;
if(Y != 100)
cout<}
int main()
{
int A=10, B=30;
Execute(B);
cout<Execute(B);
cout<return 0;
}

7. Define a structure customer with the following members : Idno, name, units and amount.

Write a C++ Program to read Idno, name and number of units consumed for n customers and compute amount as per the following criteria :

Units             Amount

1 – 100        200 baiza per unit
101 –300     400 baiza per unit
> 300          500 baiza per unit

For example , if the units consumed is 350, then
amount = 100*0.200 + 200*0.400 + 50*0.500
Display Idno, name, number of units and total amount for n customers.

8. Write a program using functions to find the simple interest. Give the function name as Interest( ) Accept principal amount and number of years in the main( ) function, fix the rate of interest as 15% as default argument. Pass principal amount and number of years to the function Interest( ), calculate the simple interest and display the result within the function.

9. Write a program using functions to accept a number and check whether it is palindrome or not. The function name is Palindrome( ). Accept the number in main( ) and pass it as argument to the function and display the result from main( ).

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