This is a quick assessment book / quiz book. It has a vast collection of questions on Data Structures. The topical coverage of data structures include 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.Unique features of this book. • Nearly 800 short questions, with answers • Questions are of only two types – True/False and sentence completion • All questions are single sentence, and have consistent format • Questions have a wide range of difficulty levels • Questions are designed to test a thorough understanding of the topical material • Questions cover the fundamental principles and properties of all commonly used data structures • Questions cover popular ones asked in internship / job interviews. Who could benefit from this book? • Students who are currently taking a course on Data structures could use this book for self–assessment and to focus on topics one is unsure about. This helps in improving the performance in tests and exams • Students who have already completed a course on Data structures, and are preparing to take written exams and/or interviews for industry/companies • Faculty can use it as a resource to quickly select a few questions as part of a quiz being prepared • Professionals trying to make a switch to Computing/IT industry could use it as a source of self–assessment • Interviewers / Managers / Technical leads could use it to make a quick assessment of the candidates in phone / personal interviews • Participants and quiz masters in quiz competitions.