CBSE Class 11 Computer Science Worksheet Set 06 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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