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C++ interview questions
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Article Title
Hits
1
What is a dangling pointer?
186
2
What is an incomplete type?
173
3
What is an Iterator class ?
138
4
What is the use of ‘using’ declaration. ?
152
5
Define namespace.
159
6
When does a name clash occur?
206
7
Differentiate between a template class and class template.
206
8
What is an orthogonal base class?
187
9
What are proxy objects?
186
10
What are the conditions that have to be met for a condition to be an invariant of the class?
145
11
Define precondition and post-condition to a member function.
149
12
What do you mean by Stack unwinding?
150
13
What is class invariant?
150
14
What is a Null object?
132
15
What is an adaptor class or Wrapper class?
120
16
Differentiate between the message and method.
115
17
How do you find out if a linked-list has an end? (i.e. the list is not a cycle)
122
18
What is polymorphism?
144
19
How do you write a function that can reverse a linked-list?
122
20
What is a container class? What are the types of container classes?
112
21
What is a node class?
141
22
Detemine the code below, tell me exectly how many times is the operation sum++ performed ? for ( i = 0; i 100 - i; j–) sum++;
121
23
In the derived class, which data member of the base class are visible?
107
24
What is the two main roles of Operating System?
113
25
How do you traverse a Btree in Backward in-order?
107
26
Write a Struct Time where integer m, h, s are its members
102
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?
94
28
Describe Stacks and name a couple of places where stacks are useful.
100
29
Describe one simple rehashing policy.
95
30
Write the psuedo code for the Depth first Search.
97
31
What are the advantages and disadvantages of B-star trees over Binary trees?
109
32
What is the difference between a Java application and a Java applet?
88
33
What is the software Life-Cycle?
82
34
Write a fucntion that will reverse a string.
96
35
What is the difference between Stack and Queue?
98
36
Name some major differences between C++ and Java?
93
37
Is C an object-oriented language?
95
38
What is semaphore?
101
39
What is semaphore?
114
40
Write a C++ program for prime number genration?
116
41
Write a c++ program for Fibonacci series?
120
42
Write a C++ program to check whether a String is Palindrome or not?
112
43
Write a c++ program for matrix multiplication?
98
44
Write a c++ program for Factorial?
109
45
Explain Decoupling?
125
46
Explain Polymorphism?
106
47
Explain Encapsulation?
103
48
Explain abstraction?
87
49
Explain inheritance?
100
50
Explain message passing?
153
51
What do you mean by method?
105
52
What do you mean by instance?
98
53
What is object?
100
54
What is class?
109
55
What are 4 important concepts of Object oriented programming?
111
56
What is object oriented programming?
107
57
What is STL(standard library)?
114
58
History of C++?
101
59
What is C++?
90
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