C++ with STL: MCQs | Conducted By Rahul Kesarwani

Which of the following best defines a class in C++?

• A blueprint for creating objects

• A data type for arrays

• A preprocessor directive

• A loop structure

What is the output of a constructor in C++?

• String

• Integer

• Object

• No output

What is the correct way to create an object using the new keyword?

• MyClass obj();

• MyClass *obj = new MyClass();

• new obj = MyClass();

• MyClass obj = new();

Which constructor is called when an object is initialized with another object?

• Default constructor

• Parameterized constructor

• Copy constructor

• Destructor

How many times can a class have constructor functions?

• Only one

• Unlimited

• Only two

• Depends on the compiler

What keyword is used to define a class in C++?

• function

• class

• define

• object

Which of the following is a correct example of method overloading?

• Two methods with different return types

• Two methods with same name but different parameters

• Two methods in different classes

• Method defined inside main()

Which of the following statements creates an object in C++?

• object obj = new object();

• object obj();

• Object obj;

• Object->obj;

What type of constructor is called when no parameters are passed?

• Copy constructor

• Default constructor

• Parameterized constructor

• Inline constructor

Which header file is needed for cin and cout?