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 36355

What is polymorphism ? Explain with examples

Ness Technologies,

8 27398

features of OOPS

Ness Technologies, Satyam,

22 60155

what is multi level inheritance give n example ?

HDFC, Hulas Steel, Ness Technologies,

13 66772

Can we have a private constructor ?

HSBC, Ness Technologies, TCS, Wipro,

12 51622

Can we have a private virtual method ?

Ness Technologies,

8 17001

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

Ness Technologies,

18 25661

What is multiple inheritance ?

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

17 28041

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 28517

What is a linked list?

IBM, Neural Info,

10 13342

Name an advantage of linked list over array?

IBM, Infosys,

11 26301

Name an advantage of array over linked list?

GML, IBM, Software Solutions,

24 61533

Have you ever used threads?

Adobe, IBM,

3 10028

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

IBM,

2 10825

Have you ever interfaced with a database?

IBM,

2 6071

Un-Answered Questions { C++ }

What is the renewal class?

2763

Can you Mention some Application of C/C++?

1082

How many different levels of pointers are there?

1215

Write about the use of the virtual destructor?

1009

What is virtual methods?

1125

What is property in oops?

1063

Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the total number of disk writes by MySQL.

2453

Does std endl flush?

1040

What is abstraction c++?

1012

Refer to a name of class or function that is defined within a namespace?

1119

Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

2574

What is encapsulation with example?

1113

What is encapsulation in oops?

1015

What is a breakpoint?

1026

Which is the best c++ software?

1100

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