Home » C++ » Interview Questions on Virtual Functions in C++

Interview Questions on Virtual Functions in C++ : (9)

Question: 1

Can we have Virtual Destructor ?

(A) Yes
(B) No

Compiler
Level: PractitionerCategory: virtual_func
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Question: 2

Can we have pure Virtual Destructor?

(A) Yes
(B) No
(C) Depends on compiler

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 3

Is it mandatory to override virtual function
in Derived class?

(A) Yes
(B) No

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 4

Can we have Pure Virtual Destructor?

(A) Yes
(B) No

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 5

Can we have constructor as Virtual?

(A) Yes
(B) No

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 6

A virtual function is declared by placing the
key word ___ in front of the return type in 
the base class’s function declaration

(A) virtual
(B) private
(C) public
(D) protected

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 7

A virtual function is a function that expects to be overridden in a derived class

(A) True
(B) False

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 8

The statement below declares a pure virtual function, and must be overridden in derived classes:
virtual void function() = 0;

(A) True
(B) False

Compiler
Level: PractitionerCategory: virtual_func
[Posted by: | ]

Question: 9

Virtual base classes are used in virtual inheritance in a way of preventing multiple “instances” of a given class appearing in an inheritance hierarchy when using multiple inheritances. (True of False)

Home » C++ » Interview Questions on Virtual Functions in C++

Interview Questions on Virtual Functions in C++ : (9)

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