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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 1 of 25

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Q1.
Stack is used for

a.

CPU Resource Allocation

b.

Breadth First Traversal

c.

Recursion

d.

None of the above

Discuss
Answer: (c).Recursion
Q2.
push() and pop() functions are found in

a.

queues

b.

lists

c.

stacks

d.

trees

Discuss
Answer: (c).stacks
Q3.
Minimum number of queues required for priority queue implementation?

a.

5

b.

4

c.

3

d.

2

Discuss
Answer: (d).2
Q4.
What data structure is used for breadth first traversal of a graph?

a.

queue

b.

stack

c.

list

d.

none of the above

Discuss
Answer: (a).queue
Q5.
A queue data-structure can be used for −

a.

expression parsing

b.

recursion

c.

resource allocation

d.

all of the above

Discuss
Answer: (c).resource allocation
Q6.
If locality is a concern, you can use _______ to traverse the graph.

a.

Breadth First Search

b.

Depth First Search

c.

Either BFS or DFS

d.

None of the above!

Discuss
Answer: (b).Depth First Search
Q7.
Aposterior analysis are more accurate than apriori analysis because −

a.

it contains the real data.

b.

it assumes all other factors to be dynamic.

c.

it assumes all other factors to be constant.

d.

it is a result of reverse-engineering.

Discuss
Answer: (b).it assumes all other factors to be dynamic.
Q8.
Prefix notation is also known as

a.

Reverse Polish Notation

b.

Reverse Notation

c.

Polish Reverse Notation

d.

Polish Notation

Discuss
Answer: (d).Polish Notation
Q9.
In conversion from prefix to postfix using stack data-structure, if operators and operands are pushed and popped exactly once, then the run-time complexity is

a.

Ο(1)

b.

Ο(n)

c.

Ο(log n)

d.

Ο(n2)

Discuss
Answer: (b).Ο(n)
Q10.
If queue is implemented using arrays, what would be the worst run time complexity of queue and dequeue operations?

a.

Ο(n), Ο(n)

b.

Ο(n), Ο(1)

c.

Ο(1), Ο(n)

d.

Ο(1), Ο(1)

Discuss
Answer: (d).Ο(1), Ο(1)
Page 1 of 25

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