This is a quick assessment book / quiz book. It has a vast collection of over 1,100 questions on Data Structures. The coverage includes elementary and advanced data structures – Arrays (single/multidimensional); Linked lists (singly–linked, doubly–linked, circular); Stacks; Queues; Heaps; Hash tables; Binary trees; Binary search trees; Balanced trees (AVL trees, Red–Black trees, B–trees/B+ trees); Graphs; Growth of functions and Big-O. Unique features of this book.