Data Structure MCQs SET-2

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Data Structure

A data structure is a specialized format for organizing, processing, retrieving and storing data. There are several basic and advanced types of data structures, all designed to arrange data to suit a specific purpose. Data structures make it easy for users to access and work with the data they need in appropriate ways.

❤️ TOP 500+ C Programming Question and Answer


Q.21 Now do you initialize an array in c ?

ANSWER= (c) int arr[3]={1,2,3};


Q.22 Which of the following concepts make extensive use use of arrays?

ANSWER= (A) Spatial locality


Q.23 What is the order of a matrix?

ANSWER= (A) number of rows x number of columns


Q.24 Process of inserating an element in stack is called

ANSWER= (A) Push


Q.25 The data structure required to check whether an expression contains balanced parenthesis is ?

ANSWER= (A) Stack


Q.26 Which data structure is needed to convert infix notaion to postfix notation?

ANSWER= (c) Stack


Q.27 A linear collection of data elements where the linear node is given by means of pointer is called ?

ANSWER= (A) Linked List


Q.28 A linear list of elements in which deletion can be done from one end (front) and insertion can take place only at the other end (rear) is known as a ?

ANSWER= (D) Queue


Q.29 Which of the following is false about a doubly linked list ?

ANSWER= (D) None of the mentioned


Q.30 What differentiates a circular linked list from normal linked list ?

ANSWER= (C) You may or may note have the next pointer point to null in a circular linked list


Q.31 What is the complexity of searching for a particular element in a singly linked list? ?

ANSWER= (A) O(n)


Q.32 Binary trees can have how many children ?

ANSWER= (C) 0 or 1 or 2


Q.33 What is the time complexity of pre-order traversal in the iterative fashion ?

ANSWER= (C) O(n)


Q.34 Which of the following is false about a binary search tree ?

ANSWER= (D) None of the mentioned


35 What is an external sorting algorithm?

ANSWER= (A)Algorithm that uses tape or disk during the sort


36 Quick sort can be categorized into which of the following?

ANSWER= (B)Divide and conquer


37 What is the number of edges present in a complete graph having n vertices?

ANSWER= (B) (n*(n-1))/2


38 A connected planer graph having 6 vertices 7 edge contains ——–regions.



39 Depth first search is equivaent to which of the traversal in the binary tree?

ANSWER= (A) pre-order traversal


Q.40 What would be the number of zero’s in the adjacency matrix of the give graph?


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