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Welcome to the Memory Allocation and Variable Scope MCQs Page

Dive deep into the fascinating world of Memory Allocation and Variable Scope with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Memory Allocation and Variable Scope, a crucial aspect of Object Oriented Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Memory Allocation and Variable Scope, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming.

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Check out the MCQs below to embark on an enriching journey through Memory Allocation and Variable Scope. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Memory Allocation and Variable Scope. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Memory Allocation and Variable Scope MCQs | Page 1 of 6

Explore more Topics under Object Oriented Programming

Q1.
What is new operator?

a.

Allocates memory for an object or array

b.

Allocates memory for an object or array and returns a particular pointer

c.

Used as return type when an object is created

d.

Used to declare any new thing in a program

Discuss
Answer: (b).Allocates memory for an object or array and returns a particular pointer
Q2.
Microsoft C++ Components extensions support new keyword to _____________

a.

Modify a vtable

b.

Replace a vtable slot entry

c.

Add new vtable slot entries

d.

Rearrange vtable slot entries

Discuss
Answer: (c).Add new vtable slot entries
Q3.
What happens when new fails?

a.

Returns zero always

b.

Throws an exception always

c.

Either throws an exception or returns zero

d.

Terminates the program

Discuss
Answer: (c).Either throws an exception or returns zero
Q4.
If new throws an error, which function can be called to write a custom exception handler?

a.

_set_handler

b.

_new_handler

c.

_handler_setter

d.

_set_new_handler

Discuss
Answer: (d)._set_new_handler
Q5.
In C++, if new operator is used, when is the constructor called?

a.

Before the allocation of memory

b.

After the allocation of memory

c.

Constructor is called to allocate memory

d.

Depends on code

Discuss
Answer: (b).After the allocation of memory
Q6.
Which among the following is correct syntax to declare a 2D array using new operator?

a.

char (*pchar)[10] = new char[][10];

b.

char (pchar) = new char[][10];

c.

char (*char) = new char[10][];

d.

char (*char)[][10]= new char;

Discuss
Answer: (a).char (*pchar)[10] = new char[][10];
Q7.
For declaring data by using new operator ____________________

a.

Type name can’t contain const

b.

Type name can’t contain volatile

c.

Type name can’t contain class declarations

d.

Type name can’t contain const, volatile, class declaration or enumerations

Discuss
Answer: (d).Type name can’t contain const, volatile, class declaration or enumerations
Q8.
The new operator _____________

a.

Can allocate reference types too

b.

Doesn’t allocate reference types

c.

Can allocate reference to objects

d.

Doesn’t allocate any data

Discuss
Answer: (b).Doesn’t allocate reference types
Q9.
Which among the following is correct?

a.

New operator can’t allocate functions but pointer to functions can be allocated

b.

New operator can allocate functions as well as pointer to functions

c.

New operator can allocate any type of functions

d.

New operator is not applicable with functions allocation

Discuss
Answer: (a).New operator can’t allocate functions but pointer to functions can be allocated
Q10.
Which among the following is added in grammar of new operator?

a.

Finalize

b.

Arg

c.

Initializer

d.

Allocator

Discuss
Answer: (c).Initializer
Page 1 of 6

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