Function Model Test(1st)

Pick the correct statements.
I. The body of a function should have only one return statement.
II. The body of a function may have many return statements.
III. A function can return only one value to the calling environment.
IV. If return statement is omitted, then the function does its job but returns no value to the calling environment.

1 Mark(s)

I and II
II and III
I and III
III and IV
II and IV

Which of the following is a complete function?

1 Mark(s)

void funct(x) { printf('Hello'); }
void funct(int) { printf('Hello'); }
None of these
int funct();
int funct(int x) { return x=x+1; }

The recursive functions are executed in a ...........

1 Mark(s)

Last In First Out order
First In First Out order
Iterative order
Random order
Parallel order

What is the result of compiling and running this code?

main()
{
      char string[] = "Hello World";
      display(string);
}

void display(char *string)
{
      printf("%s", string);
}

What is the result of compiling and running this code?

main()
{
      char string[] = "Hello World";
      display(string);
}

void display(char *string)
{
      printf("%s", string);
}

1 Mark(s)

will print Hello World
Compilation Error
will print garbage value
None of these.

The default parameter passing mechanism is

1 Mark(s)

None of these.
call by reference
call by value
call by value result

What will be the output of the following program code?

main()
{
      static int var = 5;
      printf("%d ", var--);
      if(var)
            main();
}

What will be the output of the following program code?

main()
{
      static int var = 5;
      printf("%d ", var--);
      if(var)
            main();
}

1 Mark(s)

None of these
Compilation Error
5 4 3 2 1
5 5 5 5 5
Infinite Loop

Determine output:

main()
{
      int i = 5;
      printf("%d%d%d%d%d", i++, i--, ++i, --i, i);
}

Determine output:

main()
{
      int i = 5;
      printf("%d%d%d%d%d", i++, i--, ++i, --i, i);
}

1 Mark(s)

45545
45445
54554
54544

char* myfunc(char *ptr)
{
   ptr+=3;
   return(ptr);
}

void main()
{
   char *x, *y;
   x = "EXAMVEDA";
   y = myfunc(x);
   printf("y=%s", y);
}

What will be printed when the sample code above is executed?

char* myfunc(char *ptr)
{
   ptr+=3;
   return(ptr);
}

void main()
{
   char *x, *y;
   x = "EXAMVEDA";
   y = myfunc(x);
   printf("y=%s", y);
}

What will be printed when the sample code above is executed?

1 Mark(s)

y=MVEDA
y=VEDA
y=AMVEDA
y=EXAMVEDA
y=EDA

When a function is recursively called all the automatic variables are stored in a ..........

1 Mark(s)

Array
Queue
Stack
Linked list
Register

What will happen after compiling and running following code?

main()
{ 
     printf("%p", main); 
}

What will happen after compiling and running following code?

main()
{ 
     printf("%p", main); 
}

1 Mark(s)

Error
None of these.
Will make an infinite loop.
Some address will be printed.

The function scanf() returns .........

1 Mark(s)

1
ASCII value of the input read.
The actual values read for each argument.
0
The number of successful read input values.

What will be printed when this program is executed?

int f(int x)
{
   if(x <= 4)
      return x;
   return f(--x);
}
void main()
{
   printf("%d ", f(7)); 
}

What will be printed when this program is executed?

int f(int x)
{
   if(x <= 4)
      return x;
   return f(--x);
}
void main()
{
   printf("%d ", f(7)); 
}

1 Mark(s)

Runtime error
Syntax error
4 5 6 7
4
1 2 3 4

Use of functions

1 Mark(s)

Helps to avoid repeated programming across programs.
Enhances the logical clarity of the program.
All of the above
Helps to avoid repeating a set of statements many times.
Makes the debugging task easier.

Functions have ..........

1 Mark(s)

Block scope
Local scope
File scope
Function scope
No scope at all

Which of the following function calculates the square of 'x' in C?

1 Mark(s)

power(2, x)
pow(2, x)
sqr(x)
power(x, 2)
pow(x, 2)

Any C program

1 Mark(s)

Need not contain any function.
None of the above
Must contain at least one function.
Needs input data.

What is function?

1 Mark(s)

Function is the fundamental modular unit. A function is usually designed to perform a specific task.
All of the above
Function is a block of statements that perform some specific task.
Function is a block of code that performs a specific task. It has a name and it is reusable.

Determine output:

main()
{
      int i = abc(10);
      printf("%d", --i);
}

int abc(int i)
{
      return(i++);
}

Determine output:

main()
{
      int i = abc(10);
      printf("%d", --i);
}

int abc(int i)
{
      return(i++);
}

1 Mark(s)

None of these.
9
10
11

Function Model Test(1st) : Question 1 of 18