C++ General Interview Questions
Questions Answers Views Company eMail

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

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

14 97314

What and all can a compiler provides by default?

Accenture, HP,

3 11385

What are the different operators in C++?

HP,

3 11283




What is the difference between method and message?

HP,

5 42670

What is difference between initialization and assignment?

Infosys, HCL, HP,

12 48912

when can we use copy constructor?

HP,

6 12684

Describe functional overloading?

HP,

6 8108

Difference between Overloading and Overriding?

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

35 181395




Difference between Operator overloading and Functional overloading?

HP,

10 45648

What is virtual constructor paradigm?

HCL, HP,

5 10501

when can we use virtual destructor?

HP, HCL, Virage Logic,

7 21030

What is the difference between Class and Structure?

IBM, TCS, HP, Samsung,

40 202964

What is size of null class?

HP,

5 12494

Is structure can be inherited?

HP, ST Micro,

5 13316

How the V-Table mechanism works?

HP,

6 18964


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Un-Answered Questions { C++ General }

What are the advantages of c++?

51


How would you find out if a linked-list is a cycle or not?

47


What is the difference between an external iterator and an internal iterator? Describe an advantage of the external iterator.

44


What is protected inheritance?

48


What is a class definition?

42






What is the difference between structures and unions?

48


If a base class is an adt, and it has three pure virtual functions, how many of these functions must be overridden in its derived classes?

49


How can you differentiate between inheritance and implementation in c++?

63


Which is the best c++ compiler for beginners?

35


How does com provide language transparency?

52


Which bitwise operator is used to check whether a particular bit is on or off?

46


How would you use the functions sin(), pow(), sqrt()?

68


How can you quickly find the number of elements stored in a dynamic array? Why is it difficult to store linked list in an array?

47


What is the auto keyword good for in c++?

67


Explain binary search.

44