OOP Delete Operator Quiz Online Practice Test

1. How is the delete operator used?

To deallocate a block of memory

To free the entire program’s memory

To deallocate memory only for primitive data types

To release all memory allocated for a class

2. When an object is allocated using the new operator, what should be done?

It must be deallocated using the delete operator

It cannot be deleted with the delete operator

Deleting it with the delete operator is optional

The delete operator cannot be used in this context

3. Does the delete operator return any value?

Yes, a positive value

Yes, a negative value

Yes, a zero value

4. What type of value does the delete operator yield?

void

void pointer

null pointer

null

5. What happens if the delete operator is used on an object that wasn't allocated with new?

Out of memory error occurs

Unreachable code error arises

Unpredictable errors may occur

Undefined variable error is triggered

6. The delete operator __________

Is valid for pointers with a null value

Is valid for pointers to void

Is valid for pointers set to 0

Is valid for pointers holding any value

7. When the delete operator is invoked on an object with a destructor, ___________

The destructor is called after memory deallocation

The destructor is called before memory deallocation

The destructor is not invoked

The destructor can be called at any point during destruction

8. If the delete operator is applied to a modifiable l-value object, then _______________ after the object is deleted.

Its value is set to null

Its value is set to void

Its value is set to 0

Its value becomes undefined

9. How many forms of the delete operator are available?

Only 1

Only 2

Only 3

Only 4

10. Which of the following correctly shows how to delete a single object?

delete *objectName;

objectName delete;

delete objectName;

objectName *delete;

11. Which of the following scenarios results in undefined behaviour?

Using delete[] on a single object

Using delete on an object array

Using delete[] on a single object and delete on an object array

Undefined behavior never occurs

12. The delete operator ___________

Calls the operator delete function

Calls a user-defined function to handle deletion

Calls a global scope function to delete the object

Does not invoke any function

13. For objects that are not of class type ______________

The global delete operator is invoked

The local delete operator is invoked

A global user-defined function is called

A local function to delete the object is invoked

14. The delete operator _______

Can be customized for each class

Cannot be customized for each class

Can only be defined at the global level

Cannot be explicitly defined in a program

Test Name:	OOP Delete Operator Quiz
Subject Category:	Computer Science
Test Type:	Multiple Choice Questions
Total Score / Questions:	14 / 14
Time Allowed:	10 Min
Who Should Practice this Test:	Students, job seekers, or professionals preparing for competitive exams and interviews.

OOP Delete Operator MCQ Quiz Online Practice Test