functions in C programming

The parameters in a function definition are

• real parameters

• formal parameters

• actual parameters

• dummy parameters

The parameters in a function call are

• real parameters

• formal parameters

• actual parameters

• dummy parameters

A function can be called in a program

• Only two times

• Only once

• Any number of times

• Only three times

The names of actual parameters and formal parameters

• always same

• should be same

• need not be same

• almost same

What will be the output of the following program

main()

{

int i;

i = abc();

printf("%d",i);

}

abc()

{

return(1000);

}

• Compiler error

• Compiler error

• Prints garbage

• Prints garbage

What will be the output of the following program

main()

{

int a=4;

change(a);

printf(“%d”,a);

}

change(int a)

{

printf(“%d”,++a);

} outputs

• 5 5

• 4 5

• 5 4

• 4 4

Actual and formal parameters must agree in

• data types

• number of argument and datatypes

• names and data type

• names and number of arguments

A function can return only____ value

• zero

• one

• two

• three

What is the output of the following program

void main()

{

int x = 2;

sqr(x);

printf(“%d”, x);

}

sqr(x)

{

int y;

y = x * x;

printf (“%d”, y);

}

• 4 4

• 2 2

• 2 4

• 4 2

Self contained block of code to perform a specific action is called

• operator

• function

• data type

• array