MSBTE I Scheme Practice MCQs of “Object Oriented Programming using C++ (22316)” UNIT-2. Classes and Objects.

A.

It will not compile because class body of Birds is not defined.

B.

It will not compile because class body of Peacock is not defined.

C.

It will not compile because a class cannot be protectedly inherited from other class.

D.

It will compile succesfully.

A.

Friend keyword can be used in the class to allow access to another class.

B.

Friend keyword can be used for a function in the public section of a class.

C.

Friend keyword can be used for a function in the private section of a class.

D.

Friend keyword can be used on main().

A.

Destructor of base class should always be static.

B.

Destructor of base class should always be virtual.

C.

Destructor of base class should not be virtual.

D.

Destructor of base class should always be private.

A.

A class member and a class object.

B.

A class object and a class.

C.

A class and a member of that class.

D.

A class object and a member of that class.

A.

By making all member functions constant.

B.

By making at least one member function as pure virtual function.

C.

By declaring it abstract using the static keyword.

D.

By declaring it abstract using the virtual keyword.

A.

Public members of the base class become protected members of derived class.

B.

Public members of the base class become private members of derived class.

C.

Private members of the base class become protected members of derived class.

D.

Public members of the base class become public members of derived class.

A.

Destructors can take arguments but constructors cannot.

B.

Constructors can take arguments but destructors cannot.

C.

Destructors can be overloaded but constructors cannot be overloaded.

D.

Constructors and destructors can both return a value.

A.

Protected

B.

Public

C.

Private

D.

Friend

A.

A private data member can be declared as a friend.

B.

A class may be declared as a friend.

C.

An object may be declared as a friend.

D.

We can use friend keyword as a class name.

A.

Default

B.

Break

C.

Protected

D.

Asm

A.

Any function in the program.

B.

All global functions in the program.

C.

Any member function of that class.

D.

Only public member functions of that class.

A.

Public

B.

Inherited

C.

Static

D.

Friend

A.

Friend Functions

B.

Object

C.

Member Functions

D.

Member Variables

A.

an object is created

B.

an object is used

C.

a class is declared

D.

an object goes out of scope.

A.

It is used to provide multiple inheritance.

B.

It is used to avoid multiple copies of base class in derived class.

C.

It is used to allow multiple copies of base class in a derived class.

D.

It allows private members of the base class to be inherited in the derived class.

A.

Zero

B.

One

C.

Two

D.

As many as we want

A.

kind of relationship

B.

has a relationship

C.

Inheritance

D.

Both A and B

A.

Public members of the base class become protected members of derived class.

B.

Public members of the base class become private members of derived class.

C.

Private members of the base class become private members of derived class.

D.

Public members of the base class become public members of derived class.

A.

Data items in a class must be private.

B.

Both data and functions can be either private or public.

C.

Member functions of a class must be private.

D.

Constructor of a class cannot be private.

A.

It shows the relationships between the classes in the form of an organization chart.

B.

It describes "has a" relationships.

C.

It describes "kind of" relationships.

D.

It shows the same relationship as a family tree.