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C++ interview questions
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1 What is a dangling pointer? 117
2 What is an incomplete type? 111
3 What is an Iterator class ? 83
4 What is the use of ‘using’ declaration. ? 105
5 Define namespace. 120
6 When does a name clash occur? 157
7 Differentiate between a template class and class template. 147
8 What is an orthogonal base class? 138
9 What are proxy objects? 140
10 What are the conditions that have to be met for a condition to be an invariant of the class? 93
11 Define precondition and post-condition to a member function. 85
12 What do you mean by Stack unwinding? 92
13 What is class invariant? 95
14 What is a Null object? 82
15 What is an adaptor class or Wrapper class? 77
16 Differentiate between the message and method. 61
17 How do you find out if a linked-list has an end? (i.e. the list is not a cycle) 68
18 What is polymorphism? 73
19 How do you write a function that can reverse a linked-list? 70
20 What is a container class? What are the types of container classes? 68
21 What is a node class? 71
22 Detemine the code below, tell me exectly how many times is the operation sum++ performed ? for ( i = 0; i 100 - i; j–) sum++; 70
23 In the derived class, which data member of the base class are visible? 61
24 What is the two main roles of Operating System? 64
25 How do you traverse a Btree in Backward in-order? 59
26 Write a Struct Time where integer m, h, s are its members 48
27 Suppose a 3-bit sequence number is used in the selective-reject ARQ, what is the maximum number of frames that could be transmitted at a time? 44
28 Describe Stacks and name a couple of places where stacks are useful. 49
29 Describe one simple rehashing policy. 49
30 Write the psuedo code for the Depth first Search. 40
31 What are the advantages and disadvantages of B-star trees over Binary trees? 53
32 What is the difference between a Java application and a Java applet? 40
33 What is the software Life-Cycle? 43
34 Write a fucntion that will reverse a string. 48
35 What is the difference between Stack and Queue? 41
36 Name some major differences between C++ and Java? 51
37 Is C an object-oriented language? 44
38 What is semaphore? 47
39 What is semaphore? 53
40 Write a C++ program for prime number genration? 62
41 Write a c++ program for Fibonacci series? 68
42 Write a C++ program to check whether a String is Palindrome or not? 59
43 Write a c++ program for matrix multiplication? 56
44 Write a c++ program for Factorial? 57
45 Explain Decoupling? 76
46 Explain Polymorphism? 56
47 Explain Encapsulation? 49
48 Explain abstraction? 52
49 Explain inheritance? 56
50 Explain message passing? 103
51 What do you mean by method? 47
52 What do you mean by instance? 53
53 What is object? 51
54 What is class? 61
55 What are 4 important concepts of Object oriented programming? 57
56 What is object oriented programming? 52
57 What is STL(standard library)? 63
58 History of C++? 54
59 What is C++? 49
 

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