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Welcome to the Stacks and Queues MCQs Page

Dive deep into the fascinating world of Stacks and Queues with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Stacks and Queues, a crucial aspect of Data Structures and Algorithms. In this section, you will encounter a diverse range of MCQs that cover various aspects of Stacks and Queues, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Structures and Algorithms.

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Check out the MCQs below to embark on an enriching journey through Stacks and Queues. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Data Structures and Algorithms.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Stacks and Queues. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Stacks and Queues MCQs | Page 3 of 25

Q21.
Identify the data structure which allows deletions at both ends of the list but insertion at only one end.
Discuss
Answer: (a).Input restricted dequeue
Q22.
In a queue, the initial values of front pointer f rare pointer r should be …….. and ……….. respectively.
Discuss
Answer: (b).0 and -1
Q23.
In a circular queue the value of r will be ..
Discuss
Answer: (c).r=(r+1)% QUEUE_SIZE
Q24.
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.
Discuss
Answer: (c).Both i and ii
Q25.
What will be the value of top, if there is a size of stack STACK_SIZE is 5
Discuss
Answer: (c).4
Q26.
………… is not the operation that can be performed on queue.
Discuss
Answer: (d).Traversal
Q27.
Which of the following is not the type of queue?
Discuss
Answer: (b).Single ended queue
Discuss
Answer: (d).All of the above
Q29.
A data structure where elements can be added or removed at either end but not in the middle is called …
Discuss
Answer: (d).dequeue
Q30.
When does top value of the stack changes?
Discuss
Answer: (d).After deletion
Page 3 of 25

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