Why do we use collections?
Differentiate between the singly linked list and doubly linked list.
Differentiate linear from non linear data structure?
Define balance factor of a node in avl tree?
Can we insert null in set?
Does array sort mutate?
What is difference between an Array and ArrayList?
Describe queue operation.
List the types of tree.
What is the prerequisite for binary searching?
In what scenario, binary search can be used?
How would you reverse characters of an array without using indexing in the array.
How many types of sorting algorithms are there?
What does quick sort do?
What are the categories of avl rotations?