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

int &ptr

int &ptr

int ptr

int ptr

int *ptr

int *ptr

All of the above

All of the above

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

Both const and volatile

Both const and volatile

volatile

volatile

static

static

const

const

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

It is passed as a hidden argument to all static functions

It is passed as a hidden argument to all static functions

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

#4. Generic pointers can be declared with__________

void

void

None of the above

None of the above

auto

auto

asm

asm

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

b is assigned to a

b is assigned to a

a is assigned to b

a is assigned to b

p now points to b

p now points to b

q now points to a

q now points to a

#6. 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

#7. A pointer can be initialized with

Null

Null

All of the above

All of the above

Address of an object of same type

Address of an object of same type

Zero

Zero

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

->*

->*

::*

::*

.*

.*

both a and b

both a and b

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

*

*

–>>

–>>

&

&

->

->

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

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.

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

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

double

double

float

float

int

int

all of the mentioned

all of the mentioned

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

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

A reference cannot be modified once it initialized

A reference cannot be modified once it initialized

All of the above

All of the above

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

Both Initialized and Declared

Both Initialized and Declared

None of the above

None of the above

Initialized

Initialized

Declared

Declared

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

*(ptr++)

*(ptr++)

None of the above

None of the above

(*ptr++)

(*ptr++)

*(ptr)++

*(ptr)++

#15. Which of the following is illegal?

int *ip;

int *ip;

string s, *sp = 0;

string s, *sp = 0;

int i; double* dp = &i;

int i; double* dp = &i;

int *pi = 0;

int *pi = 0;

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

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

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

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

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

pointer to an array of chars

pointer to an array of chars

pointer to a pointer

pointer to a pointer

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

point to a type

point to a type

point one past the end of an object

point one past the end of an object

zero

zero

hold the address of the specific object

hold the address of the specific object

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

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

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

none of the above

none of the above

Both x and y are pointers to string types

Both x and y are pointers to string types

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

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

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

none of the mentioned

none of the mentioned

when it doesn’t point to any value

when it doesn’t point to any value

using delete keyword

using delete keyword

when it cast to another type of object

when it cast to another type of object

#20. 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**)

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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