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Interview Questions/Answers

C++ Q & A

Total C++ questions: 54

Q 1) What are function pointers?
Q 2) What is C++?
Q 3) What is a modifier?
Q 4) What is an accessor?
Q 5) Differentiate between a template class and class template.
Q 6) When does a name clash occur?
Q 7) Define namespace.
Q 8) What is an Iterator class?
Q 9) What is an incomplete type?
Q 10) What is a dangling pointer?
Q 11) Differentiate between the message and method.
Q 12) What is an adaptor class or Wrapper class?
Q 13) What is a Null object?
Q 14) What is class invariant?
Q 15) What do you mean by Stack unwinding?
Q 16) Define precondition and post-condition to a member function.
Q 17) What are the conditions that have to be met for a condition to be an invariant of the class?
Q 18) What are proxy objects?
Q 19) Name some pure object oriented languages.
Q 20) What is a node class?
Q 21) What is an orthogonal base class?
Q 22) What is a container class? What are the types of container classes?
Q 23) How do you write a function that can reverse a linked-list?
Q 24) What is polymorphism?
Q 25) How do you find out if a linked-list has an end? (i.e. the list is not a cycle)
Q 26) How can you tell what shell you are running on UNIX system?
Q 27) What is pure virtual function?
Q 28) Write a Struct Time where integer m, h, s are its members.
Q 29) How do you traverse a Btree in Backward in-order?
Q 30) What is the two main roles of Operating System?
Q 31) In the derived class, which data member of the base class are visible?
Q 32) What is the difference between realloc() and free()?
Q 33) What is function overloading and operator overloading?
Q 34) What is the difference between declaration and definition?
Q 35) What are the advantages of inheritance?
Q 36) What do you mean by inline function?
Q 37) What is public, protected, private?
Q 38) Tell how to check whether a linked list is circular.
Q 39) What is polymorphism?
Q 40) What is virtual constructors/destructors?
Q 41) What is the difference between an ARRAY and a LIST?
Q 42) Does c++ support multilevel and multiple inheritance?
Q 43) What is a template?
Q 44) You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc()
Q 45) What is the difference between class and structure?
Q 46) What is RTTI?
Q 47) What is encapsulation?
Q 48) What is an object?
Q 49) What is a COPY CONSTRUCTOR and when is it called?
Q 50) What does extern mean in a function declaration?
Q 51) Explain the scope resolution operator.
Q 52) What is a default constructor?
Q 53) What is a conversion constructor?
Q 54)  

How algorithm is different from flowchart?

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