OOAD Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOAD Interview Questions

Questions Answers Views Company eMail

Why are virtual users created?

Wipro,

1057

what is virtual function and pure virtual function ?

Infosys,

978

What are virtual functions, base class pointer, derived class pointer, biding references?

HPCL, Hughes Systique Corporation,

983

What is Abstract method and how different from Virtual Method?

934

What do you mean by virtual function and virtual classes?

MCN Solutions,

1019

What is polymorphism? When is it employed? give an example.

iNautix,

1029

What is the best tool for modeling and ORM framework

Infosys,

1041

What is Overloading ? Is it similar to overriding ?

MCN Solutions,

1010

Explain the use of Vtable and what are the various problems to override the functions?

Ittiam Systems,

948

Does PowerShell support OOPs?

Microsoft,

1031

What is data abstraction? what are the three levels of data abstraction with Example?

TCS,

978

Is it possible to override private virtual methods?

Infosys,

993

Give any criteria when you use an abstract class and an interface?

Sans Pareil IT Services,

941

Define Data Abstraction. What is its importance?

Amazon, Infosys,

983

How to make a class accessible as a web service?

BirlaSoft,

962

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Un-Answered Questions { OOAD }

Is it possible to override private virtual methods?

993

What is meant by overloading functions and operators?

1067

Explain basic concepts of OOPS?

916

Differences between functional programming and object-oriented programming?

1054

What do you mean by abstract class?

1059

What are inner classes and what is the practical implementation of inner classes?

892

What is the difference between data hiding and implementation?

1060

What is the default access specifier in a class definition?

1023

Is iterator a class or interface? What is its use?

938

Explain about the relationship between object oriented programming and databases?

940

Can we override static methods of a class?

1033

Explain about Overloading vs Overriding ?

985

What is a virtual function?

987

What is difference between polymorphism and normalization?

2054

What is the use of interface?

1068

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