OOP Constructors Overloading Quiz Online Practice Test

1. Which statement accurately describes constructor overloading?

Constructors cannot be overloaded

Constructors can be overloaded by using different signatures

Constructors can be overloaded with identical signatures

Constructors can be overloaded with different return types

2. To enable a constructor to create objects both with and without arguments, which approach is most effective?

Implement a zero-argument constructor

Use a constructor with a single parameter

Employ a constructor with all arguments set to default values

Utilize a default constructor

3. Which of the following statements is correct?

Constructor overloading can be achieved by using different names

Constructor overloading can be done by using different return types

Constructors can be overloaded using only one argument

Constructors must have the same name as the class

4. Which of the following can serve as a substitute for a default constructor?

constructorName(int x, int y=0)

constructorName(int x=0, int y=0)

constructorName(int x=0, int y)

constructorName(int x, int y)

5. Is it possible for a class to have multiple functions, each with all default arguments?

Yes, always

Yes, provided the argument lists differ

No, because constructor overloading is not based on the argument list

No, never

6. What is the correct syntax for defining default arguments in a constructor?

default constructorName(default int x=0)

constructorName(default int x=0)

constructorName(int x=0)

constructorName()

7. Given the following constructor prototype: className(int x, int y, int z=0); how many arguments are required?

Compile-time error

8. When constructors are overloaded using default arguments, what potential issue could occur?

The constructors might have identical arguments except for the default values

The constructors might share the same return type

The constructors might have the same number of arguments

The constructors cannot be overloaded based on default arguments

9. Which of the following statements is accurate?

Multiple constructors with all default arguments are permitted

Multiple constructors with all default arguments can be defined outside the class

Multiple constructors can have identical argument lists

It is not possible to have multiple constructors with all default arguments within the same class

10. Given the call className(5, 'a');, which constructor is selected?

className(int x=5, char c='a');

int className(int x, char c, char d);

className(int x, char c, int y);

char className(char c, int x);

11. Which of the following constructor definitions will result in a compile-time error?

className(int x=0);

className(char c);

className(int x=0, char c);

className(char c, int x=0);

12. If a constructor with all default arguments is called without passing any arguments, ____________

The default values provided will not be applied

Null values will be used for all arguments

All the default values specified will be used

The compiler will generate an error

13. Which statement accurately describes default constructors?

Constructors that have all arguments set to default values

Constructors that use only null or zero values

Constructors that cannot be defined by the programmer

Constructors with no arguments

14. What is a better alternative to having both a zero-argument constructor and a single-argument constructor with a default value?

Omitting the constructor entirely

Using a single constructor with default values

Defining a default constructor

Employing one constructor that handles two arguments

Test Name:	OOP Constructors Overloading 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 Constructors Overloading MCQ Quiz Online Practice Test