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Data structure interview questions
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1 What is the heap? 143
2 How can I search for data in a linked list? 97
3 What is the quickest sorting method to use? 90
4 What is the quickest sorting method to use? 83
5 Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes? 90
6 What is placement new? 96
7 When can you tell that a memory leak will occur? 104
8 How many different trees are possible with 10 nodes ? 121
9 Minimum number of queues needed to implement the priority queue? 96
10 In an AVL tree, at what condition the balancing is to be done? 74
11 What is the bucket size, when the overlapping and collision occur at same time? 72
12 What is the easiest sorting method to use? 83
13 What is the easiest sorting method to use? 76
14 What is impact of signed numbers on the memory? 72
15 What is precision? 72
16 What is the difference between NULL AND VOID pointer? 69
17 What is the difference between ARRAY and STACK? 60
18 What is the difference between ARRAY and STACK? 63
19 Tell how to check whether a linked list is circular ? 60
20 Whether Linked List is linear or Non-linear data structure? 57
21 Whether Linked List is linear or Non-linear data structure? 54
22 What is the data structures used to perform recursion? 61
23 If you are using C language to implement the heterogeneous linked list, what pointer type will you use? 57
24 List out the areas in which data structures are applied extensively ? 53
25 Why do we Use a Multidimensional Array? 53
26 Why do we Use a Multidimensional Array? 48
27 What is significance of ” * ” ? 57
28 What is Data Structure? 52
29 Is Pointer a variable? 54
30 How many parts are there in a declaration statement? 49
31 How memory is reserved using a declaration statement ? 59
32 How memory is reserved using a declaration statement ? 51
33 Which process places data at the back of the queue? 50
34 What is the relationship between a queue and its underlying array? 60
35 What is the relationship between a queue and its underlying array? 49
36 What does isEmpty() member method determines? 51
37 What method removes the value from the top of a stack? 56
38 What method is used to place a value onto the top of a stack? 52
39 Run Time Memory Allocation is known as ? 56
40 How do you assign an address to an element of a pointer array ? 56
41 Difference between calloc and malloc ? 63
42 What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model. 56
43 Which file contains the definition of member functions? 56
44 How is any Data Structure application is classified among files? 59
45 What member function places a new node at the end of the linked list? 62
46 What is Linked List ? 53
47 What does each entry in the Link List called? 59
48 How is the front of the queue calculated ? 53
49 Why is the isEmpty() member method called? 56
50 What is a linked list? 50
51 What is a queue ? 63
52 Explain what are linear data structure & non-linear data structure? 58
 
 

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