# DS Structure

## Types of Arrays MCQ [Free PDF] – Objective Question Answer for Types of Arrays Quiz

Types of Arrays MCQ   1. What is a bit array? a) Data structure for representing arrays of records b) Data structure that compactly stores bits c) An array in which most of the elements have the same value d) Array in which elements are not present in continuous locations Answer: b A bit array …

## Xor Linked List MCQ [Free PDF] – Objective Question Answer for Xor Linked List Quiz

Xor Linked List MCQ   1. What is a skip list? a) a linkedlist with size value in nodes b) a linkedlist that allows faster search within an ordered sequence c) a linkedlist that allows slower search within an ordered sequence d) a tree that is in the form of a linked list Answer: b …

## Binary Trees MCQ [Free PDF] – Objective Question Answer for Binary Trees Quiz

Binary Trees MCQ   1. How many children does a binary tree have? a) 2 b) any number of children c) 0 or 1 or 2 d) 0 or 1 Answer: c A binary tree is a tree data structure in which each node has at most two children, which are referred to as the …

## B-Trees MCQ [Free PDF] – Objective Question Answer for B-Trees Quiz

B-Trees MCQ   1. Which of the following is the most widely used external memory data structure? a) AVL tree b) B-tree c) Red-black tree d) Both AVL tree and Red-black tree Answer: b In external memory, the data is transferred in form of blocks. These blocks have data values and pointers. And B-tree can …

## Tree Data Structure MCQ [Free PDF] – Objective Question Answer for Tree Data Structure Quiz

Tree Data Structure MCQ   1. How many child nodes does each node of the Ternary Tree contain? a) 4 b) 6 c) 5 d) 3 Answer: d Each node of the Ternary tree contains at most 3 nodes. So Ternary tree can have 1, 2, or 3 child nodes but not more than that. …

## Heap Data Structure MCQ [Free PDF] – Objective Question Answer for Heap Data Structure Quiz

Heap Data Structure MCQ   1. In a max-heap, an element with the greatest key is always in which node? a) Leaf node b) First node of left subtree c) root node d) the First node of the right subtree Answer: c In a max-heap, an element with the greatest key is always in the …

## Trie Data Structure MCQ [Free PDF] – Objective Question Answer for Trie Data Structure Quiz

Trie Data Structure MCQ   1. Trie is also known as _________ a) Digital Tree b) Treap c) Binomial Tree d) 2-3 Tree Answer: a Trie is a very useful data structure that is based on the prefix of a string. Trie is used to represent the “Retrieval” of data and thus the name Trie. …

## Data Structure Graph MCQ [Free PDF] – Objective Question Answer for Data Structure Graph Quiz

1. Which of the following statements for a simple graph is correct? a) Every path is a trail b) Every trail is a path c) Every trail is a path, as well as every path, is a trail d) Path and trail have no relation Answer: a In a walk if the vertices are distinct …

## Application of Stacks Quiz [Free PDF] – Objective Question Answer for Application of Stacks Quiz

Express -15 as a 6-bit signed binary number. A. 001111 B. 101111 C. 101110 D. 001110   3. Which is the predefined method available in Java to convert decimal to binary numbers? A. toBinaryInteger(int) B. toBinaryValue(int) C. toBinaryNumber(int) D. toBinaryString(int)   5. What is the time complexity for converting decimal to binary numbers? A. O(1) …

## Hash Tables MCQ [Free PDF] – Objective Question Answer for Hash Tables MCQ Quiz

1. What is a hash table? a) A structure that maps values to keys b) A structure that maps keys to values c) A structure used for storage d) A structure used to implement stack and queue Answer: b A hash table is used to implement associative arrays which have a key-value pair, so the …

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