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 the difference between and interface and an abstract class ?

IBM, Infosys, Ness Technologies,

4 36350

What is polymorphism ? Explain with examples

Ness Technologies,

8 27396

features of OOPS

Ness Technologies, Satyam,

22 60138

what is multi level inheritance give n example ?

HDFC, Hulas Steel, Ness Technologies,

13 66766

Can we have a private constructor ?

HSBC, Ness Technologies, TCS, Wipro,

12 51614

Can we have a private virtual method ?

Ness Technologies,

8 16999

How would you stop a class from class from being derived or inherited.

Ness Technologies,

18 25649

What is multiple inheritance ?

Blue Star, C DAC, CDAC, Impetus, Ness Technologies, Softvision Solution,

17 28032

We have a scale and 7 balls. 1 ball is heavier than all the rest. How to determine the heaviest ball with only 3 possible weighing attempts?

IBM, Sage, Vertex,

8 28514

What is a linked list?

IBM, Neural Info,

10 13332

Name an advantage of linked list over array?

IBM, Infosys,

11 26297

Name an advantage of array over linked list?

GML, IBM, Software Solutions,

24 61511

Have you ever used threads?

Adobe, IBM,

3 10026

Should you protect the global data in threads? Why or why not?

IBM,

2 10824

Have you ever interfaced with a database?

IBM,

2 6068

Un-Answered Questions { C++ }

Get me a number puzzle game-program

2250

What are the 5 oop principles?

1127

What are protected members in c++?

1136

Is empty stack c++?

997

What is object in oops?

1067

What is constructor in C++?

1089

What is the default access level?

1070

Is overriding possible in c++?

1015

What is the use of class in c++?

1085

Differentiate between realloc() and free().

1056

int age=35; if(age>80) {Console.WriteLine("Boy you are old");} else {Console.WrieLine("That is a good age");}

1261

How do you traverse a btree in backward in-order?

1035

What is the keyword auto for?

1040

What is format for defining a structure?

1086

Can we inherit constructor in c++?

1094

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