Programming in C++
Pointers
Q.

When does the void pointer can be dereferenced ?
A.  

when it doesn’t point to any value

 B.  

when it cast to another type of object

 C.  

using delete keyword

 D.  

using shift keyword
Similar Questions
1.

Which of the following is the proper declaration of a pointer ?
A.  

int x;

 B.  

int &x;

 C.  

ptr x;

 D.  

 int *x;
2.

Which of the following gives the memory address of integer variable a ?
A.  

*a;

 B.  

 a;

 C.  

&a;

 D.  

address(a);
3.

Which of the following gives the memory address of a pointer a ? 
A.  

a;

 B.  

*a;

 C.  

&a;

 D.  

address(a)
4.

Which of the following gives the value stored at the address pointed to by the pointer a ?
A.  

a

 B.  

val(a);

 C.  

*a;

 D.  

&a
5.

Which of the following is the proper keyword to allocate memory ?
A.  

new

 B.  

malloc

 C.  

create

 D.  

value
6.

Which of the following is the proper keyword to deallocate memory ?
A.  

free

 B.  

delete

 C.  

clear

 D.  

remove
7.

What does the following statement mean ?
A.  

pointer to a pointer

 B.  

pointer to an array of chars

 C.  

pointer to function taking a char* argument and returns an int

 D.  

function taking a char* argument and returning a pointer to int
8.

The operator used for dereferencing or indirection is ____
A.  

*

 B.  

&

 C.  

->

 D.  

–>>
9.

Choose the right option.
string* x, y;
A.  

x is a pointer to a string, y is a string

 B.  

y is a pointer to a string, x is a string

 C.  

both x and y are pointers to string types

 D.  

y is a pointer to a string
10.

Which one of the following is not a possible state for a pointer.
A.  

hold the address of the specific object

 B.  

point one past the end of an object

 C.  

zero

 D.  

point to a type
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