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

Describe friend function & its advantages.

TCS,

1135

Explain Memory Allocation in C/C++ ?

Infosys,

1071

Briefly describe a B+ tree. What is bulk loading in it?

Wipro,

1341

How do we balance an AVL Tree in C++?

Impetus,

1130

Write a C++ Program to check whether a number is prime number or not?

IBS,

1132

what you know about c++?

IBS,

1159

Difference between Abstraction and encapsulation in C++?

Impetus,

1162

Implement stack operations with pointers with appropriate exception checks.

Huawei,

980

Write a function to find the nth item from the end of a linked list in a single pass.

Huawei,

983

Write a program to find the Fibonacci series recursively.

Huawei,

1073

Write a program to find the reverse Fibonacci series starting from N.

Huawei,

1274

What is command line arguments in C++? What are its uses? Where we have to use this?

HCL,

1276

Which one is a preferred language C or C++? Why?

1094

Write a code/algo to find the frequency of each element in an array?

Axtria,

1122

Write is a binary search tree? Write an algo and tell complexity?

Axtria,

1025

Un-Answered Questions { C++ }

What is const in c++?

1107

Can a program run without main function?

1167

When do we run a shell in the unix system? How will you tell which shell you are running?

984

What is the difference between C and CPP?

1161

Write about all the implicit member functions of a class?

1062

How do you declare A pointer to function which receives an int pointer and returns a float pointer

1225

How does an stl file work?

1158

Write a program to encrypt the data in a way that inputs a four digit number and replace each digit by (the sum of that digit plus 7) modulus 10. Then sweep the first digit with the third, second digit with the fourth and print the encrypted number.

2589

What are the various situations where a copy constructor is invoked?

1132

What is meant by exit controlled loop?

1049

What are move semantics?

1162

Why is main function important?

1111

What is the use of ::(scope resolution operator)?

1075

Is c++ pass by reference or value?

1072

Which programming language should I learn first?

1097

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