C++ MCQ : C++ Pointers (MULTIPLE CHOICE QUESTIONS)

In the last set of MCQs, we were introduced to C++ Constants. There, we have discussed some questions. This set of multiple choice questions focuses on the C++ Pointers.

Firstly, read all the questions and after that select the appropriate option. Moreover, each question contains four options, out of them only one option will be correct. If you fail to select the correct option, don’t worry, you can try again at the end (by refreshing the page). You can use Previous and Next button to switch to a different set of questions.

C++ MCQ | POINTERS

TEST INSTRUCTIONS: Click on options to see the answer.

Now, start attempting the quiz.

#1. When does the void pointer can be dereferenced?

when it cast to another type of object

when it cast to another type of object

when it doesn’t point to any value

when it doesn’t point to any value

none of the mentioned

none of the mentioned

using delete keyword

using delete keyword

#2. Void pointer can point to which type of objects?

int

int

float

float

all of the mentioned

all of the mentioned

double

double

#3. Prior to using a pointer variable, it should be

Both Initialized and Declared

Both Initialized and Declared

Initialized

Initialized

None of the above

None of the above

Declared

Declared

#4. What does the following statement mean?
int (*fp)(char*)

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

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

pointer to a pointer

pointer to a pointer

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

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

pointer to an array of chars

pointer to an array of chars

#5. Which of the following gives the [value] stored at the address pointed to by the pointer : ptr?

*ptr

*ptr

ptr

ptr

Value(ptr)

Value(ptr)

&ptr

&ptr

#6. Which of the following is true about 'this' pointer?

None of the above

None of the above

It is passed as a hidden argument to all non-static function calls

It is passed as a hidden argument to all non-static function calls

It is passed as a hidden argument to all function calls

It is passed as a hidden argument to all function calls

It is passed as a hidden argument to all static functions

It is passed as a hidden argument to all static functions

#7. Which of the following is illegal?

string s, *sp = 0;

string s, *sp = 0;

int *ip;

int *ip;

int *pi = 0;

int *pi = 0;

int i; double* dp = &i;

int i; double* dp = &i;

#8. Which of the following is the correct way to declare a pointer ?

All of the above

All of the above

int *ptr

int *ptr

int ptr

int ptr

int &ptr

int &ptr

#9. Which of the followings is/are pointer-to-member declarator?

.*

.*

->*

->*

both a and b

both a and b

::*

::*

#10. The pointer can point to any variable that is not declared with which of these?

static

static

Both const and volatile

Both const and volatile

volatile

volatile

const

const

#11. Choose the right option string* x, y;

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

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

Both x and y are pointers to string types

Both x and y are pointers to string types

none of the above

none of the above

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

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

#12. What will happen in the following C++ code snippet?
int a = 100, b = 200;
int *p = &a, *q = &b;
p = q;

q now points to a

q now points to a

b is assigned to a

b is assigned to a

p now points to b

p now points to b

a is assigned to b

a is assigned to b

#13. Generic pointers can be declared with__________

None of the above

None of the above

asm

asm

void

void

auto

auto

#14. The operator used for dereferencing or indirection is ____

->

->

–>>

–>>

*

*

&

&

#15. The correct statement for a function that takes pointer to a float, a pointer to a pointer to a char and returns a pointer to a pointer to a integer is ____________

int *fun(float*, char*)

int *fun(float*, char*)

int ***fun(*float, **char)

int ***fun(*float, **char)

int **fun(float*, char**)

int **fun(float*, char**)

int **fun(float**, char**)

int **fun(float**, char**)

#16. A pointer can be initialized with

Zero

Zero

Null

Null

Address of an object of same type

Address of an object of same type

All of the above

All of the above

#17. How are the references different from the pointer?

All of the above

All of the above

A reference cannot be modified once it initialized

A reference cannot be modified once it initialized

There is no need of an extra operator for dereferencing of a reference

There is no need of an extra operator for dereferencing of a reference

There is no need of an extra operator for dereferencing of a reference

There is no need of an extra operator for dereferencing of a reference

#18. ‘ptr’ is a pointer to a data type. The expression *ptr++ is evaluated as :

*(ptr)++

*(ptr)++

*(ptr++)

*(ptr++)

(*ptr++)

(*ptr++)

None of the above

None of the above

#19. What is the use of 'this' pointer?

Can be used for chained function calls on an object

Can be used for chained function calls on an object

When local variable’s name is same as member’s name, we can access member using this pointer.

When local variable’s name is same as member’s name, we can access member using this pointer.

All of the above

All of the above

When local variable’s name is same as member’s name, we can access member using this pointer.

When local variable’s name is same as member’s name, we can access member using this pointer.

#20. Which one of the following is not a possible state for a pointer?

point one past the end of an object

point one past the end of an object

zero

zero

point to a type

point to a type

hold the address of the specific object

hold the address of the specific object

Finish

Results

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Are you curious to learn more about C++ Programming? If yes, then don’t forget to explore all the topics of C++ programming. Here, is the complete set of Multiple Choice Questions and Answers. These question sets are very helpful in preparing for Competitive Exams and University level exams.

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