pointers and structures

What is the output of following program?

• 20

• 30

• Compile Error

• Runtime Error

Arrays always occupy contiguous memory area

• True

• False

Which of the following format specifier in printf is used to print pointers?

• %c

• %d

• %f

• %p

A pointer is

• A keyword used to create variables

• A variable that stores address of an instruction

• A variable that stores address of a varaibe

• All of the above

What is the & in pointers?

• Dereferences the memory address into an object

• References an object into a memory address

• Makes a new copy of the object as a memory address

• None of the above.

How do you make a pointer point to an existing variable?

int y = 0;

• int *x = y;

• int x = y;

• int *x = &y;

• int &x = *y;

#include <stdio.h> double i; int main() { printf("%g\n",i); return 0; }

• 0

• 0.000000

• Garbage value

• Depends on the compiler

User-defined data type can be derived by___________

• struct

• enum

• typedef

• all of the mentioned

Which operator connects the structure name to its member name?

• –

• <-

• .

• Both <- and .

Which of the following cannot be a structure member?

• Another structure

• Function

• Array

• None of the mentioned