Explore topic-wise MCQs in Data Structures and Algorithms.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Data Structures and Algorithms knowledge and support exam preparation. Choose a topic below to get started.

1.

Consider the following doubly linked list: head-1-2-3-4-5-tail. What will be the list after performing the given sequence of operations?

A. head-0-1-2-3-4-5-6-tail
B. head-1-2-3-4-5-6-tail
C. head-6-1-2-3-4-5-0-tail
D. head-0-1-2-3-4-5-tailView Answer
Answer» D. head-0-1-2-3-4-5-tailView Answer
Discussion
2.

What is the worst case time complexity of inserting a node in a doubly linked list?

A. O(nlogn)
B. O(logn)
C. O(n)
D. O(1)
Answer» D. O(1)
Discussion
3.

What is a memory efficient double linked list?

A. Each node has only one pointer to traverse the list back and forth
B. The list has breakpoints for faster traversal
C. An auxiliary singly linked list acts as a helper list to traverse through the doubly linked list
D. A doubly linked list that uses bitwise AND operator for storing addresses
Answer» B. The list has breakpoints for faster traversal
Discussion
4.

WHAT_IS_A_MEMORY_EFFICIENT_DOUBLE_LINKED_LIST??$

A. Each node has only one pointer to traverse the list back and forth
B. The list has breakpoints for faster traversal
C. An auxiliary singly linked list acts as a helper list to traverse through the doubly linked list
D. None of the mentioned
Answer» C. An auxiliary singly linked list acts as a helper list to traverse through the doubly linked list
Discussion
5.

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

A. We can navigate in both the directions
B. It requires more space than a singly linked list
C. The insertion and deletion of a node take a bit longer
D. None of the mentioned
Answer» E.
Discussion