What are good C++ interview questions?

C++ Interview Questions For Experienced

  • What is a copy constructor?
  • What is the difference between shallow copy and deep copy?
  • What is the difference between virtual functions and pure virtual functions?
  • If class D is derived from a base class B.
  • Can we call a virtual function from a constructor?
  • What are void pointers?

What are the Viva questions asked in C++?

Basic-Level C++ Interview Questions

  • What is the difference between C and C++?
  • What are classes and objects in C++?
  • What are access modifiers?
  • Difference between equal to (==) and assignment operator(=)?
  • What is the difference between a while loop and a do-while loop?
  • What is the size of the int data type?

How many keywords are there in C++?

There are 32 of these. There are 11 C++ reserved words that are not essential when the standard ASCII character set is being used, but they have been added to provide more readable alternatives for some of the C++ operators, and also to facilitate programming with character sets that lack characters needed by C++.

What is data type in C++?

There are three data types in C++ which are primitive data types, abstract data types, and derived data types. Primitive data types include integer, floating-point, character, boolean, double floating-point, valueless or void, and wide character.

Who is father of C++ language?

Bjarne StroustrupC++ / Designed by

Why is it called C++?

C++ was originally called ‘C with classes,’ and was built as an extension of the C language. Its name reflects its origins; C++ literally means ‘increment C by 1. ‘ It was renamed C++ in 1983, but retains a strong link to C, and will compile most C programs.

What are tokens in C++?

A token is the smallest element of a C++ program that is meaningful to the compiler. The C++ parser recognizes these kinds of tokens: Keywords. Identifiers. Numeric, Boolean and Pointer Literals.