Define 2-3-4 tree?
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What is difference between stack and queue?
What is Insertion sort, selection sort, bubble sort( basic differences among the functionality of the three sorts and not the exact algorithms)?
Is a hashmap a dictionary?
What is difference between rb tree and avl tree?
What is a reverse linked list.
Which sorting algorithm has minimum number of swaps?
What is raid (redundant array of inexpensive disks)? Explain its level?
What are skew trees? For a tree with 4 nodes draw all possible binary? Generalize for n nodes how many binary trees can be drawn?
Can you override methods of arraylist?
What is the main advantage of a linked list?
what is the difference between dynamic as well as non - dynamic data structures.
What do u mean by data type?