Data Structure and Algorithms (DSA) MCQs with answers Page - 42

Here, you will find a collection of MCQ questions on Data Structure and Algorithms (DSA). Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. 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) queue
  • (D) dequeue

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Q. Which of the following name does not relate to stacks?

  • (A) fifo lists
  • (B) lifo list
  • (C) piles
  • (D) push-down lists

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Q. The term "push" and "pop" is related to the

  • (A) array
  • (B) lists
  • (C) stacks
  • (D) all of the above

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Q. Which data structure allows deleting data elements from front and inserting at rear?

  • (A) stacks
  • (B) queue
  • (C) dequeue
  • (D) binary search tree

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Q. node.next -> node.next.next; will make

  • (A) node.next inaccessible
  • (B) node.next.next inaccessible
  • (C) this node inaccessible
  • (D) none of the above

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Q. A circular linked list can be used for

  • (A) stack
  • (B) queue
  • (C) both stack & queue
  • (D) neither stack or queue

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Q. In doubly linked lists

  • (A) a pointer is maintained to store both next and previous nodes.
  • (B) two pointers are maintained to store next and previous nodes.
  • (C) a pointer to self is maintained for each node.
  • (D) none of the above

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Q. 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.
  • (C) time consuming
  • (D) requires more memory space

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Q. 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

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Q. In doubly linked lists, traversal can be performed?

  • (A) only in forward direction
  • (B) only in reverse direction
  • (C) in both directions
  • (D) none of the above

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