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

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

What is Copy Constructor?

ABC, Siemens,

5 33047

What is an abstract class?

Siemens,

6 13016

What is the difference between creating an object, using 'new' and using 'malloc'?

HFG, Siemens,

3 13594

What is a virtual base class?

Fidelity, Siemens,

6 25640

What is OOPS and How it is different from Procedural Programming ?

HP, Infosys, Thyrocare,

23 74912

Difference between Top down and bottom up approaches for a given project ?

BSNL, CSC, HCL, HP, IIT, Infosys, Siemens,

14 111879

What and all can a compiler provides by default?

Accenture, HP,

3 16624

What are the different operators in C++?

HP,

3 14604

What is the difference between method and message?

HP,

5 58710

What is difference between initialization and assignment?

HCL, HP, Infosys,

12 66553

when can we use copy constructor?

HP,

6 17656

Describe functional overloading?

HP,

6 13016

Difference between Overloading and Overriding?

Appnetix Techno, GameLoft, HP, IBM, NIIT, Rohde and Schwarz,

35 205965

Difference between Operator overloading and Functional overloading?

HP,

10 54479

What is virtual constructor paradigm?

HCL, HP,

5 16731

Un-Answered Questions { C++ }

Explain the pure virtual functions?

1060

When you overload member functions, in what ways must they differ?

1003

What is pointer in oop?

977

What is difference between array and vector in c++?

980

What does malloc return in C and C++?

968

What does 7/9*9 equal ? a) 1 b) 0.08642 c) 0

917

What is the difference between public, private, and protected inheritance?

991

What are the 4 pillars of oop?

1098

Why is object oriented programming so hard?

1029

List the advantages of inheritance.

1081

What is enum c++?

1160

What size is allocated to the union variable?

1015

How does a copy constructor differs from an overloaded assignment operator?

976

What is difference between class and function?

1039

What is the advantage of oop over procedural language?

1016

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