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OOAD Interview Questions
Questions Answers Views Company eMail

Why are virtual users created?

Wipro,

631

what is virtual function and pure virtual function ?

Infosys,

566

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

HPCL, Hughes Systique Corporation,

548

What is Abstract method and how different from Virtual Method?

 528

What do you mean by virtual function and virtual classes?

MCN Solutions,

522

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

iNautix,

564

What is the best tool for modeling and ORM framework

Infosys,

564

What is Overloading ? Is it similar to overriding ?

MCN Solutions,

586

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

Ittiam Systems,

545

Does PowerShell support OOPs?

Microsoft,

589

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

TCS,

572

Is it possible to override private virtual methods?

Infosys,

545

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

Sans Pareil IT Services,

571

Define Data Abstraction. What is its importance?

Amazon, Infosys,

558

How to make a class accessible as a web service?

BirlaSoft,

531

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Un-Answered Questions { OOAD }

Explain about realistic modeling?

572

What is the use of interface?

605

Why we use oops concepts? What is its advantage?

570

What is the use of ‘finalize’?

621

What are different ways to create string object?

575




Can you tell something about GDI objects?

607

Why do we use oops concepts? What is its advantage?

556

What is composition? Explain the purpose of composition.

555

Explain about encapsulation?

583

Can you explain primordial class loader?

501

What is the function of messaging metaphor?

592

Name some languages which have object oriented language and characteristics?

569

Which OOPS concept exposes only the necessary information to the calling functions?

693

What are the different principle of OOPS?

544

A class inherits from 2 interfaces and both the interfaces have the same method name as shown below. How should the class implement the drive method for both car and bus interface?

555

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