OOP Automatic Variable Quiz Online Practice Test

1. How would you classify automatic variables?

Global variables

Temporary or implicit variables

Local variables

System-defined variables

2. What happens to the memory of automatic variables?

Manually allocated and deallocated

Automatically managed

Never allocated

Inherently unsafe

3. How does the scope of an automatic variable behave?

Encompasses the entire program

Is indefinite

Lasts for the duration of the entire program

Is limited to the function or block where it is defined

4. Which of the following statements is true regarding automatic variables?

Automatic variables are hidden from the called function

Automatic variables are always accessible by the called function

Automatic variables cannot interact with the called function

Automatic variables cannot be modified

5. What happens when an automatic variable is created before a function call?

The automatic variable is destroyed

The automatic variable remains intact

The automatic variable may or may not be destroyed

The automatic variable becomes unusable in this scenario

6. Where are automatic variables stored when another function is called during program execution?

Heap

Queue

Stack

Temporary variable

7. How do static variables behave within a function?

Are also considered automatic variables

Are not classified as automatic variables

Are automatically treated as automatic variables by default

Can be explicitly converted to automatic variables

8. What happens to all variables declared within a block?

Are not necessarily automatic

Can be explicitly designated as non-automatic

Are static by default

Are automatic by default

9. What values do uninitialized automatic variables hold?

Null value

Void value

Undefined or garbage values

Zero value

10. When is the constructor for automatic variables invoked?

When the execution reaches the declaration of the automatic variables

During the compilation of the program

At the start of program execution

Immediately before the program begins execution

11. Does Java include the `auto` or `register` keywords?

Yes, for declaring all variable types

Yes, solely for declaring cache registers

No, because Java does not support automatic variables

No, Java uses the concept of local variables

12. What is true about automatic variables?

Must be declared after their use

Must be declared before their use

Must be declared but can be done at any time

Must not be initialized

13. What error occurs if automatic variables are used without being declared?

Undefined symbol

Memory error

Type mismatch

Statement missing

14. In Perl, local variables are created using which operator?

Dot

Arrow

Scope resolution

`my`

15. How do automatic variables differ from instance variables?

Automatic variables are initialized automatically, whereas instance variables are not

Automatic variables are given zero values initially, whereas instance variables are not

Instance variables need to be initialized explicitly, while automatic variables are initialized implicitly

Instance variables are initialized implicitly, whereas automatic variables are not

Test Name:	OOP Automatic Variable Quiz
Subject Category:	Computer Science
Test Type:	Multiple Choice Questions
Total Score / Questions:	15 / 15
Time Allowed:	10 Min
Who Should Practice this Test:	Students, job seekers, or professionals preparing for competitive exams and interviews.

OOP Automatic Variable MCQ Quiz Online Practice Test