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Data structure interview questions
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1 What is the heap? 220
2 How can I search for data in a linked list? 158
3 What is the quickest sorting method to use? 141
4 What is the quickest sorting method to use? 129
5 Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes? 146
6 What is placement new? 157
7 When can you tell that a memory leak will occur? 166
8 How many different trees are possible with 10 nodes ? 219
9 Minimum number of queues needed to implement the priority queue? 178
10 In an AVL tree, at what condition the balancing is to be done? 133
11 What is the bucket size, when the overlapping and collision occur at same time? 123
12 What is the easiest sorting method to use? 141
13 What is the easiest sorting method to use? 131
14 What is impact of signed numbers on the memory? 126
15 What is precision? 125
16 What is the difference between NULL AND VOID pointer? 131
17 What is the difference between ARRAY and STACK? 110
18 What is the difference between ARRAY and STACK? 114
19 Tell how to check whether a linked list is circular ? 114
20 Whether Linked List is linear or Non-linear data structure? 118
21 Whether Linked List is linear or Non-linear data structure? 107
22 What is the data structures used to perform recursion? 121
23 If you are using C language to implement the heterogeneous linked list, what pointer type will you use? 108
24 List out the areas in which data structures are applied extensively ? 106
25 Why do we Use a Multidimensional Array? 113
26 Why do we Use a Multidimensional Array? 96
27 What is significance of ” * ” ? 112
28 What is Data Structure? 104
29 Is Pointer a variable? 103
30 How many parts are there in a declaration statement? 113
31 How memory is reserved using a declaration statement ? 105
32 How memory is reserved using a declaration statement ? 102
33 Which process places data at the back of the queue? 96
34 What is the relationship between a queue and its underlying array? 113
35 What is the relationship between a queue and its underlying array? 97
36 What does isEmpty() member method determines? 124
37 What method removes the value from the top of a stack? 107
38 What method is used to place a value onto the top of a stack? 113
39 Run Time Memory Allocation is known as ? 109
40 How do you assign an address to an element of a pointer array ? 111
41 Difference between calloc and malloc ? 119
42 What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model. 106
43 Which file contains the definition of member functions? 109
44 How is any Data Structure application is classified among files? 117
45 What member function places a new node at the end of the linked list? 123
46 What is Linked List ? 99
47 What does each entry in the Link List called? 106
48 How is the front of the queue calculated ? 102
49 Why is the isEmpty() member method called? 105
50 What is a linked list? 102
51 What is a queue ? 115
52 Explain what are linear data structure & non-linear data structure? 102
 
 

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