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300+ top data structures and algorithms mc qs pdf 2020

This document contains over 300 multiple choice questions about data structures and algorithms. It covers topics like data structure implementation levels, binary search trees, abstract data types, stacks, queues, linked lists, trees, graphs, sorting algorithms, searching algorithms, complexity analysis, and more. The questions are meant to help test understanding of fundamental data structures and algorithms concepts.

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12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 1/39 Home » Data Structures and Algorithms Questions » 300+ TOP Data Structures and Algorithms Multiple Choice Questions and Answers 300+ TOP Data Structures and Algorithms Multiple Choice Questions and Answers Data Structures and Algorithms Multiple Choice Questions :- 1. Which if the following is/are the levels of implementation of data structure A) Abstract level B) Application level C) Implementation level D) All of the above Search Here for Skill Search... HOME Interview Questions MCQs *LAB VIVA CLASS NOTES SEMINAR TOPICS ONLINE TEST GATE CAT Internship ABOUT US Privacy Policy Design ID Cards Quickly Asure ID 7 O ers More Than Good Looks. Try It Today HID® Global
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 2/39 2. A binary search tree whose left subtree and right subtree differ in hight by at most 1 unit is called …… A) AVL tree B) Red-black tree C) Lemma tree D) None of the above 3. ……………….. level is where the model becomes compatible executable code A) Abstract level B) Application level C) Implementation level D) All of the above DATA STRUCTURES and ALGORITHMS MCQs 4. Stack is also called as A) Last in first out B) First in last out C) Last in last out D) First in first out 5. Which of the following is true about the characteristics of abstract data types? 7 recruitin metrics Learn the 7 rec metrics with t power to trans your hiring pro TestGorilla
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 3/39 i) It exports a type. ii) It exports a set of operations A) True, False B) False, True C) True, True D) False, False 6. …………… is not the component of data structure. A) Operations B) Storage Structures C) Algorithms D) None of above 7. Which of the following is not the part of ADT description? A) Data B) Operations C) Both of the above D) None of the above 8. Inserting an item into the stack when stack is not full is called …………. Operation and deletion of item form the stack, when stack is not empty is called ………..operation. A) push, pop B) pop, push C) insert, delete Open
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 4/39 D) delete, insert 9. ……………. Is a pile in which items are added at one end and removed from the other. A) Stack B) Queue C) List D) None of the above 10. ………… is very useful in situation when data have to stored and then retrieved in reverse order. A) Stack B) Queue C) List D) Link list 11. Which data structure allows deleting data elements from and inserting at rear? A) Stacks B) Queues C) Dequeues D) Binary search tree 12. Which of the following data structure can’t store the non-homogeneous data elements? A) Arrays
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 5/39 B) Records C) Pointers D) Stacks 13. A ……. is a data structure that organizes data similar to a line in the supermarket, where the first one in line is the first one out. A) Queue linked list B) Stacks linked list C) Both of them D) Neither of them 14. Which of the following is non-liner data structure? A) Stacks B) List C) Strings D) Trees 15. Herder node is used as sentinel in ….. A) Graphs B) Stacks C) Binary tree D) Queues
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 6/39 16. Which data structure is used in breadth first search of a graph to hold nodes? A) Stack B) queue C) Tree D) Array 17. Identify the data structure which allows deletions at both ends of the list but insertion at only one end. A) Input restricted dequeue B) Output restricted qequeue C) Priority queues D) Stack 18. Which of the following data structure is non linear type? A) Strings B) Lists C) Stacks D) Graph 19. Which of the following data structure is linear type? A) Graph B) Trees C) Binary tree
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 7/39 D) Stack 20. To represent hierarchical relationship between elements, Which data structure is suitable? A) Dequeue B) Priority C) Tree D) Graph 21. A directed graph is ………………. if there is a path from each vertex to every other vertex in the digraph. A) Weakly connected B) Strongly Connected C) Tightly Connected D) Linearly Connected 22. In the …………….. traversal we process all of a vertex’s descendants before we move to an adjacent vertex. A) Depth First B) Breadth First C) With First D) Depth Limited 23. State True of False. i) Network is a graph that has weights or costs associated with it.
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 8/39 ii) An undirected graph which contains no cycles is called a forest. iii) A graph is said to be complete if there is no edge between every pair of vertices. A) True, False, True B) True, True, False C) True, True, True D) False, True, True 24. Match the following. a) Completeness i) How long does it take to find a solution b) Time Complexity ii) How much memory need to perform the search. c) Space Complexity iii) Is the strategy guaranteed to find the solution when there in one. A) a-iii, b-ii, c-i B) a-i, b-ii, c-iii C) a-iii, b-i, c-ii
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 9/39 D) a-i, b-iii, c-ii 25. The number of comparisons done by sequential search is ……………… A) (N/2)+1 B) (N+1)/2 C) (N-1)/2 D) (N+2)/2 26. In ……………, search start at the beginning of the list and check every element in the list. A) Linear search B) Binary search C) Hash Search D) Binary Tree search 27. State True or False. i) Binary search is used for searching in a sorted array. ii) The time complexity of binary search is O(logn). A) True, False B) False, True C) False, False D) True, True 28. Which of the following is not the internal sort?
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 10/39 A) Insertion Sort B) Bubble Sort C) Merge Sort D) Heap Sort 29. State True or False. i) An undirected graph which contains no cycles is called forest. ii) A graph is said to be complete if there is an edge between every pair of vertices. A) True, True B) False, True C) False, False D) True, False 30. A graph is said to be ……………… if the vertices can be split into two sets V1 and V2 such there are no edges between two vertices of V1 or two vertices of V2. A) Partite B) Bipartite C) Rooted D) Bisects 31. In a queue, the initial values of front pointer f rare pointer r should be …….. and ……….. respectively. A) 0 and 1
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 11/39 B) 0 and -1 C) -1 and 0 D) 1 and 0 32. In a circular queue the value of r will be .. A) r=r+1 B) r=(r+1)% [QUEUE_SIZE – 1] C) r=(r+1)% QUEUE_SIZE D) r=(r-1)% QUEUE_SIZE 33. Which of the following statement is true? i) Using singly linked lists and circular list, it is not possible to traverse the list backwards. ii) To find the predecessor, it is required to traverse the list from the first node in case of singly linked list. A) i-only B) ii-only C) Both i and ii D) None of both 34. The advantage of …………….. is that they solve the problem if sequential storage representation. But disadvantage in that is they are sequential lists. A) Lists B) Linked Lists
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 12/39 C) Trees D) Queues 35. What will be the value of top, if there is a size of stack STACK_SIZE is 5 A) 5 B) 6 C) 4 D) None 36. ………… is not the operation that can be performed on queue. A) Insertion B) Deletion C) Retrieval D) Traversal 37. There is an extra element at the head of the list called a ………. A) Antinel B) Sentinel C) List header D) List head 38. A graph is a collection of nodes, called ………. And line segments called arcs or ……….. that connect pair of nodes.
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 13/39 A) vertices, edges B) edges, vertices C) vertices, paths D) graph node, edges 39. A ……….. is a graph that has weights of costs associated with its edges. A) Network B) Weighted graph C) Both A and B D) None A and B 40. In general, the binary search method needs no more than ……………. comparisons. A) [log2n]-1 B) [logn]+1 C) [log2n] D) [log2n]+1 41. Which of the following is not the type of queue? A) Ordinary queue B) Single ended queue C) Circular queue D) Priority queue
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 14/39 42. The property of binary tree is A) The first subset is called left subtree B) The second subtree is called right subtree C) The root cannot contain NULL D) The right subtree can be empty 43. State true or false. i) The degree of root node is always zero. ii) Nodes that are not root and not leaf are called as internal nodes. A) True, True B) True, False C) False, True D) False, False 44. Any node is the path from the root to the node is called A) Successor node B) Ancestor node C) Internal node D) None of the above 45. State true of false. i) A node is a parent if it has successor nodes. ii) A node is child node if out degree is one.
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 15/39 A) True, True B) True, False C) False, True D) False, False 46. ………………. is not an operation performed on linear list a) Insertion b) Deletion c) Retrieval d) Traversal A) only a,b and c B) only a and b C) All of the above D) None of the above 47. Which is/are the application(s) of stack A) Function calls B) Large number Arithmetic C) Evaluation of arithmetic expressions D) All of the above 48. A …………… is an acyclic digraph, which has only one node with indegree 0, and other nodes have in-degree 1. A) Directed tree B) Undirected tree C) Dis-joint tree
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 16/39 D) Direction oriented tree 49. …………………. Is a directed tree in which outdegree of each node is less than or equal to two. A) Unary tree B) Binary tree C) Trinary tree D) Both B and C 50. State true or false. i) An empty tree is also a binary tree. ii) In strictly binary tree, the out-degree of every node is either o or 2. A) True, False B) False, True C) True, True D) False, False 51. Which of the following data structures are indexed structures? A. Linear arrays B. Linked lists C. Queue D. Stack
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 17/39 52. Which of the following data structure store the homogeneous data elements? A. Arrays B. Records C. Pointers D. Lists 53. When new data are to be inserted into a data structure, but there is not available space; this situation is usually called …. A. Underflow B. overflow C. houseful D. saturated 54. A data structure where elements can be added or removed at either end but not in the middle is called … A. linked lists B. stacks C. queues D. dequeue 55. Operations on a data structure may be ….. A. creation B. destruction
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 18/39 C. selection D. all of the above 56. The way in which the data item or items are logically related defines ….. A. storage structure B. data structure C. data relationship D. data operation 57. Which of the following are the operations applicable an primitive data structures? A. create B. destroy C. update D. all of the above 58. The use of pointers to refer elements of a data structure in which elements are logically adjacent is …. A. pointers B. linked allocation C. stack D. queue 59. Arrays are best data structures
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 19/39 A. for relatively permanent collections of data B. for the size of the structure and the data in the structure are constantly changing C. for both of above situation D. for non of above situation 60. Which of the following statement is false? A. Arrays are dense lists and static data structure. B. Data elements in linked list need not be stored in adjacent space in memory C. Pointers store the next data element of a list. D. Linked lists are collection of the nodes that contain information part and next pointer. Data Structures and Algorithms Multiple Choice Questions and Answers :- 61. Which of the following data structure is non-linear type? A) Strings
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 20/39 B) Lists C) Stacks D) Tree 62. Which of the following data structure is linear type? A) Array B) Tree C) Graphs D) Hierarchy 63. The logical or mathematical model of a particular organization of data is called a ……… A) Data structure B) Data arrangement C) Data configuration D) Data formation 64. The simplest type of data structure is ……………… A) Multidimensional array B) Linear array C) Two dimensional array D) Three dimensional array 65. Linear arrays are also called ……………….
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 21/39 A) Straight line array B) One-dimensional array C) Vertical array D) Horizontal array 66. Arrays are best data structures ………… A) For relatively permanent collections of data. B) For the size of the structure and the data in the structure are constantly changing C) For both of above situation D) For none of the above 67. Which of the following data structures are indexed structures? A) Linear arrays B) Linked lists C) Graphs D) Trees 68. Each node in a linked list has two pairs of ………….. and ………………. A) Link field and information field B) Link field and avail field C) Avail field and information field
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 22/39 D) Address field and link field 69. A …………………… does not keep track of address of every element in the list. A) Stack B) String C) Linear array D) Queue 70. When does top value of the stack changes? A) Before deletion B) While checking underflow C) At the time of deletion D) After deletion 71. Which of the following data structure is non-linear type? A) Strings B) Lists C) Stacks D) Tree 72. Which of the following data structure is linear type? A) Array B) Tree
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 23/39 C) Graphs D) Hierarchy 73. The logical or mathematical model of a particular organization of data is called a ……… A) Data structure B) Data arrangement C) Data configuration D) Data formation 74. The simplest type of data structure is ……………… A) Multidimensional array B) Linear array C) Two dimensional array D) Three dimensional array 75. Linear arrays are also called ………………. A) Straight line array B) One-dimensional array C) Vertical array D) Horizontal array 76. Arrays are best data structures ………… A) For relatively permanent collections of data.
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 24/39 B) For the size of the structure and the data in the structure are constantly changing C) For both of above situation D) For none of the above 77. Which of the following data structures are indexed structures? A) Linear arrays B) Linked lists C) Graphs D) Trees 78. Each node in a linked list has two pairs of ………….. and ………………. A) Link field and information field B) Link field and avail field C) Avail field and information field D) Address field and link field 79. A …………………… does not keep track of address of every element in the list. A) Stack B) String C) Linear array D) Queue
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 25/39 80. When does top value of the stack changes? A) Before deletion B) While checking underflow C) At the time of deletion D) After deletion 91. Arrays are best data structures A) for relatively permanent collections of data B) for the size of the structure and the data in the structure are constantly changing C) for both of above situation D) for none of above situation 92. Which of the following data structure is not linear data structure? A) Arrays B) Linked lists C) Both of the above D) None of the above 93. The disadvantage in using a circular linked list is ……………………. A) It is possible to get into infinite loop. B) Last node points to first node.
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 26/39 C) Time consuming D) Requires more memory space 94. A linear list in which each node has pointers to point to the predecessor and successors nodes is called as .. A) Singly Linked List B) Circular Linked List C) Doubly Linked List D) Linear Linked List 95. A ……………….. is a linear list in which insertions and deletions are made to from either end of the structure. A) circular queue B) random of queue C) priority D) dequeue 96. In a priority queue, insertion and deletion takes place at ……………… A) front, rear end B) only at rear end C) only at front end D) any position 97. The time complexity of quick sort is …………..
12/4/2020 300+ TOP Data Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 27/39 A) O(n) B) O(n2) C) O(n log n) D) O(log n) 98. Which of the following is an application of stack? A) finding factorial B) tower of Hanoi C) infix to postfix conversion D) all of the above 99. The data structure which is one ended is ……………… A) queue B) stack C) tree D) graph 100. A list which displays the relationship of adjacency between elements is said to be A) linear B) non linear C) linked list D) trees
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300+ top data structures and algorithms mc qs pdf 2020

  • 1.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 1/39 Home » Data Structures and Algorithms Questions » 300+ TOP Data Structures and Algorithms Multiple Choice Questions and Answers 300+ TOP Data Structures and Algorithms Multiple Choice Questions and Answers Data Structures and Algorithms Multiple Choice Questions :- 1. Which if the following is/are the levels of implementation of data structure A) Abstract level B) Application level C) Implementation level D) All of the above Search Here for Skill Search... HOME Interview Questions MCQs *LAB VIVA CLASS NOTES SEMINAR TOPICS ONLINE TEST GATE CAT Internship ABOUT US Privacy Policy Design ID Cards Quickly Asure ID 7 O ers More Than Good Looks. Try It Today HID® Global
  • 2.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 2/39 2. A binary search tree whose left subtree and right subtree differ in hight by at most 1 unit is called …… A) AVL tree B) Red-black tree C) Lemma tree D) None of the above 3. ……………….. level is where the model becomes compatible executable code A) Abstract level B) Application level C) Implementation level D) All of the above DATA STRUCTURES and ALGORITHMS MCQs 4. Stack is also called as A) Last in first out B) First in last out C) Last in last out D) First in first out 5. Which of the following is true about the characteristics of abstract data types? 7 recruitin metrics Learn the 7 rec metrics with t power to trans your hiring pro TestGorilla
  • 3.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 3/39 i) It exports a type. ii) It exports a set of operations A) True, False B) False, True C) True, True D) False, False 6. …………… is not the component of data structure. A) Operations B) Storage Structures C) Algorithms D) None of above 7. Which of the following is not the part of ADT description? A) Data B) Operations C) Both of the above D) None of the above 8. Inserting an item into the stack when stack is not full is called …………. Operation and deletion of item form the stack, when stack is not empty is called ………..operation. A) push, pop B) pop, push C) insert, delete Open
  • 4.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 4/39 D) delete, insert 9. ……………. Is a pile in which items are added at one end and removed from the other. A) Stack B) Queue C) List D) None of the above 10. ………… is very useful in situation when data have to stored and then retrieved in reverse order. A) Stack B) Queue C) List D) Link list 11. Which data structure allows deleting data elements from and inserting at rear? A) Stacks B) Queues C) Dequeues D) Binary search tree 12. Which of the following data structure can’t store the non-homogeneous data elements? A) Arrays
  • 5.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 5/39 B) Records C) Pointers D) Stacks 13. A ……. is a data structure that organizes data similar to a line in the supermarket, where the first one in line is the first one out. A) Queue linked list B) Stacks linked list C) Both of them D) Neither of them 14. Which of the following is non-liner data structure? A) Stacks B) List C) Strings D) Trees 15. Herder node is used as sentinel in ….. A) Graphs B) Stacks C) Binary tree D) Queues
  • 6.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 6/39 16. Which data structure is used in breadth first search of a graph to hold nodes? A) Stack B) queue C) Tree D) Array 17. Identify the data structure which allows deletions at both ends of the list but insertion at only one end. A) Input restricted dequeue B) Output restricted qequeue C) Priority queues D) Stack 18. Which of the following data structure is non linear type? A) Strings B) Lists C) Stacks D) Graph 19. Which of the following data structure is linear type? A) Graph B) Trees C) Binary tree
  • 7.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 7/39 D) Stack 20. To represent hierarchical relationship between elements, Which data structure is suitable? A) Dequeue B) Priority C) Tree D) Graph 21. A directed graph is ………………. if there is a path from each vertex to every other vertex in the digraph. A) Weakly connected B) Strongly Connected C) Tightly Connected D) Linearly Connected 22. In the …………….. traversal we process all of a vertex’s descendants before we move to an adjacent vertex. A) Depth First B) Breadth First C) With First D) Depth Limited 23. State True of False. i) Network is a graph that has weights or costs associated with it.
  • 8.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 8/39 ii) An undirected graph which contains no cycles is called a forest. iii) A graph is said to be complete if there is no edge between every pair of vertices. A) True, False, True B) True, True, False C) True, True, True D) False, True, True 24. Match the following. a) Completeness i) How long does it take to find a solution b) Time Complexity ii) How much memory need to perform the search. c) Space Complexity iii) Is the strategy guaranteed to find the solution when there in one. A) a-iii, b-ii, c-i B) a-i, b-ii, c-iii C) a-iii, b-i, c-ii
  • 9.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 9/39 D) a-i, b-iii, c-ii 25. The number of comparisons done by sequential search is ……………… A) (N/2)+1 B) (N+1)/2 C) (N-1)/2 D) (N+2)/2 26. In ……………, search start at the beginning of the list and check every element in the list. A) Linear search B) Binary search C) Hash Search D) Binary Tree search 27. State True or False. i) Binary search is used for searching in a sorted array. ii) The time complexity of binary search is O(logn). A) True, False B) False, True C) False, False D) True, True 28. Which of the following is not the internal sort?
  • 10.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 10/39 A) Insertion Sort B) Bubble Sort C) Merge Sort D) Heap Sort 29. State True or False. i) An undirected graph which contains no cycles is called forest. ii) A graph is said to be complete if there is an edge between every pair of vertices. A) True, True B) False, True C) False, False D) True, False 30. A graph is said to be ……………… if the vertices can be split into two sets V1 and V2 such there are no edges between two vertices of V1 or two vertices of V2. A) Partite B) Bipartite C) Rooted D) Bisects 31. In a queue, the initial values of front pointer f rare pointer r should be …….. and ……….. respectively. A) 0 and 1
  • 11.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 11/39 B) 0 and -1 C) -1 and 0 D) 1 and 0 32. In a circular queue the value of r will be .. A) r=r+1 B) r=(r+1)% [QUEUE_SIZE – 1] C) r=(r+1)% QUEUE_SIZE D) r=(r-1)% QUEUE_SIZE 33. Which of the following statement is true? i) Using singly linked lists and circular list, it is not possible to traverse the list backwards. ii) To find the predecessor, it is required to traverse the list from the first node in case of singly linked list. A) i-only B) ii-only C) Both i and ii D) None of both 34. The advantage of …………….. is that they solve the problem if sequential storage representation. But disadvantage in that is they are sequential lists. A) Lists B) Linked Lists
  • 12.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 12/39 C) Trees D) Queues 35. What will be the value of top, if there is a size of stack STACK_SIZE is 5 A) 5 B) 6 C) 4 D) None 36. ………… is not the operation that can be performed on queue. A) Insertion B) Deletion C) Retrieval D) Traversal 37. There is an extra element at the head of the list called a ………. A) Antinel B) Sentinel C) List header D) List head 38. A graph is a collection of nodes, called ………. And line segments called arcs or ……….. that connect pair of nodes.
  • 13.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 13/39 A) vertices, edges B) edges, vertices C) vertices, paths D) graph node, edges 39. A ……….. is a graph that has weights of costs associated with its edges. A) Network B) Weighted graph C) Both A and B D) None A and B 40. In general, the binary search method needs no more than ……………. comparisons. A) [log2n]-1 B) [logn]+1 C) [log2n] D) [log2n]+1 41. Which of the following is not the type of queue? A) Ordinary queue B) Single ended queue C) Circular queue D) Priority queue
  • 14.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 14/39 42. The property of binary tree is A) The first subset is called left subtree B) The second subtree is called right subtree C) The root cannot contain NULL D) The right subtree can be empty 43. State true or false. i) The degree of root node is always zero. ii) Nodes that are not root and not leaf are called as internal nodes. A) True, True B) True, False C) False, True D) False, False 44. Any node is the path from the root to the node is called A) Successor node B) Ancestor node C) Internal node D) None of the above 45. State true of false. i) A node is a parent if it has successor nodes. ii) A node is child node if out degree is one.
  • 15.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 15/39 A) True, True B) True, False C) False, True D) False, False 46. ………………. is not an operation performed on linear list a) Insertion b) Deletion c) Retrieval d) Traversal A) only a,b and c B) only a and b C) All of the above D) None of the above 47. Which is/are the application(s) of stack A) Function calls B) Large number Arithmetic C) Evaluation of arithmetic expressions D) All of the above 48. A …………… is an acyclic digraph, which has only one node with indegree 0, and other nodes have in-degree 1. A) Directed tree B) Undirected tree C) Dis-joint tree
  • 16.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 16/39 D) Direction oriented tree 49. …………………. Is a directed tree in which outdegree of each node is less than or equal to two. A) Unary tree B) Binary tree C) Trinary tree D) Both B and C 50. State true or false. i) An empty tree is also a binary tree. ii) In strictly binary tree, the out-degree of every node is either o or 2. A) True, False B) False, True C) True, True D) False, False 51. Which of the following data structures are indexed structures? A. Linear arrays B. Linked lists C. Queue D. Stack
  • 17.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 17/39 52. Which of the following data structure store the homogeneous data elements? A. Arrays B. Records C. Pointers D. Lists 53. When new data are to be inserted into a data structure, but there is not available space; this situation is usually called …. A. Underflow B. overflow C. houseful D. saturated 54. A data structure where elements can be added or removed at either end but not in the middle is called … A. linked lists B. stacks C. queues D. dequeue 55. Operations on a data structure may be ….. A. creation B. destruction
  • 18.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 18/39 C. selection D. all of the above 56. The way in which the data item or items are logically related defines ….. A. storage structure B. data structure C. data relationship D. data operation 57. Which of the following are the operations applicable an primitive data structures? A. create B. destroy C. update D. all of the above 58. The use of pointers to refer elements of a data structure in which elements are logically adjacent is …. A. pointers B. linked allocation C. stack D. queue 59. Arrays are best data structures
  • 19.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 19/39 A. for relatively permanent collections of data B. for the size of the structure and the data in the structure are constantly changing C. for both of above situation D. for non of above situation 60. Which of the following statement is false? A. Arrays are dense lists and static data structure. B. Data elements in linked list need not be stored in adjacent space in memory C. Pointers store the next data element of a list. D. Linked lists are collection of the nodes that contain information part and next pointer. Data Structures and Algorithms Multiple Choice Questions and Answers :- 61. Which of the following data structure is non-linear type? A) Strings
  • 20.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 20/39 B) Lists C) Stacks D) Tree 62. Which of the following data structure is linear type? A) Array B) Tree C) Graphs D) Hierarchy 63. The logical or mathematical model of a particular organization of data is called a ……… A) Data structure B) Data arrangement C) Data configuration D) Data formation 64. The simplest type of data structure is ……………… A) Multidimensional array B) Linear array C) Two dimensional array D) Three dimensional array 65. Linear arrays are also called ……………….
  • 21.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 21/39 A) Straight line array B) One-dimensional array C) Vertical array D) Horizontal array 66. Arrays are best data structures ………… A) For relatively permanent collections of data. B) For the size of the structure and the data in the structure are constantly changing C) For both of above situation D) For none of the above 67. Which of the following data structures are indexed structures? A) Linear arrays B) Linked lists C) Graphs D) Trees 68. Each node in a linked list has two pairs of ………….. and ………………. A) Link field and information field B) Link field and avail field C) Avail field and information field
  • 22.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 22/39 D) Address field and link field 69. A …………………… does not keep track of address of every element in the list. A) Stack B) String C) Linear array D) Queue 70. When does top value of the stack changes? A) Before deletion B) While checking underflow C) At the time of deletion D) After deletion 71. Which of the following data structure is non-linear type? A) Strings B) Lists C) Stacks D) Tree 72. Which of the following data structure is linear type? A) Array B) Tree
  • 23.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 23/39 C) Graphs D) Hierarchy 73. The logical or mathematical model of a particular organization of data is called a ……… A) Data structure B) Data arrangement C) Data configuration D) Data formation 74. The simplest type of data structure is ……………… A) Multidimensional array B) Linear array C) Two dimensional array D) Three dimensional array 75. Linear arrays are also called ………………. A) Straight line array B) One-dimensional array C) Vertical array D) Horizontal array 76. Arrays are best data structures ………… A) For relatively permanent collections of data.
  • 24.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 24/39 B) For the size of the structure and the data in the structure are constantly changing C) For both of above situation D) For none of the above 77. Which of the following data structures are indexed structures? A) Linear arrays B) Linked lists C) Graphs D) Trees 78. Each node in a linked list has two pairs of ………….. and ………………. A) Link field and information field B) Link field and avail field C) Avail field and information field D) Address field and link field 79. A …………………… does not keep track of address of every element in the list. A) Stack B) String C) Linear array D) Queue
  • 25.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 25/39 80. When does top value of the stack changes? A) Before deletion B) While checking underflow C) At the time of deletion D) After deletion 91. Arrays are best data structures A) for relatively permanent collections of data B) for the size of the structure and the data in the structure are constantly changing C) for both of above situation D) for none of above situation 92. Which of the following data structure is not linear data structure? A) Arrays B) Linked lists C) Both of the above D) None of the above 93. The disadvantage in using a circular linked list is ……………………. A) It is possible to get into infinite loop. B) Last node points to first node.
  • 26.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 26/39 C) Time consuming D) Requires more memory space 94. A linear list in which each node has pointers to point to the predecessor and successors nodes is called as .. A) Singly Linked List B) Circular Linked List C) Doubly Linked List D) Linear Linked List 95. A ……………….. is a linear list in which insertions and deletions are made to from either end of the structure. A) circular queue B) random of queue C) priority D) dequeue 96. In a priority queue, insertion and deletion takes place at ……………… A) front, rear end B) only at rear end C) only at front end D) any position 97. The time complexity of quick sort is …………..
  • 27.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 27/39 A) O(n) B) O(n2) C) O(n log n) D) O(log n) 98. Which of the following is an application of stack? A) finding factorial B) tower of Hanoi C) infix to postfix conversion D) all of the above 99. The data structure which is one ended is ……………… A) queue B) stack C) tree D) graph 100. A list which displays the relationship of adjacency between elements is said to be A) linear B) non linear C) linked list D) trees
  • 28.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 28/39 45 THOUGHTS ON “300+ TOP DATA STRUCTURES AND ALGORITHMS MULTIPLE CHOICE QUESTIONS AND ANSWERS” OCTOBER 18, 2019 AT 5:00 PM I want to prepare for my entrance exam. Pls send me all of the complete notes on computer science and mcq also. Cing
  • 29.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 29/39 Thanks in advance. REPLY MARCH 30, 2017 AT 5:30 AM sir plzz send me mcq pdf on data structure, network security, DBMS nd operating system… i m preparing for dssb cs tchr.. thank u REPLY MARCH 2, 2017 AT 12:44 PM please send to mcq on my email id ds,os dbms,cn, REPLY FEBRUARY 2, 2017 AT 3:57 AM send me the notes of computer science and mcq also REPLY JANUARY 17, 2017 AT 1:21 AM please send to me this pdf of question and answers to Samsonsoligi07@mail.com REPLY shweta priya tayade vijay rathod samson soligi
  • 30.
    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 30/39 JANUARY 2, 2017 AT 2:20 PM can u mail me Data Structure,DBMS,OS,Networking MCQ PDF on ramcharan.patidar19@gmail.com mail id REPLY JANUARY 2, 2017 AT 2:18 PM Dear sir , Please send All Question related of Data Structure this is very help me for Compitative exam REPLY DECEMBER 20, 2016 AT 12:07 PM Sir please send the Data structures and algorithm, Oops, c++ mcq questions With answers pdf REPLY DECEMBER 10, 2016 AT 7:46 AM ramcharan ramcharan K.Ashokkumar Ajith Kumar
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    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 38/39 MARCH 14, 2016 AT 9:50 AM i need mcq on data structures nad algorithm..can u plz send it REPLY OCTOBER 25, 2016 AT 3:06 AM good question answer REPLY LEAVE A REPLY Your email address will not be published. Required fields are marked * Comment Name * Email * Website harish
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    12/4/2020 300+ TOPData Structures and Algorithms MCQs Pdf 2020 https://engineeringinterviewquestions.com/data-structures-and-algorithms-multiple-choice-questions-and-answers/ 39/39 Post CommentPost Comment Search... Copyright 2020 , Engineering Interview Questions.com , Theme by Engineering|| Privacy Policy|| Terms and Conditions|| ABOUT US|| Contact US|| Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced.