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.

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 8 of 25

Explore more Topics under Data Structures and Algorithms

01

Data Structures Basics

02

Data Types and Abstraction

03

Algorithm Complexity

04

Arrays and Pointers

05

Linked Lists

06

Recursion

07

Trees

08

Graphs

09

String Operations

10

Sorting and Searching

11

Object Oriented Programming

12

Dynamic Programming

Q71.

The result of evaluating the following postfix expression is
5, 7, 9, *, +, 4, 9, 3, /, +, -

Discuss

Answer: (c).61

Q72.

An infix expression can be converted to a postfix expression using a .................

Stack

Queue

Dequeue

None of these

Discuss

Answer: (a).Stack

Q73.

A data structure in which an element is added and removed only from one end, is known as

Queue

Stack

In-built structure

None of the above

Discuss

Answer: (b).Stack

Q74.

The data structure needed to convert a recursion to an iterative procedure is ............

Queue

Graph

Stack

Tree

Discuss

Answer: (c).Stack

Q75.

The prefix form of an infix expression A+B-C*D is

+AB-*CD

-+A B C * D

-+A B * C D

- + *ABCD

Discuss

Answer: (c).-+A B * C D

Q76.

One can determine whether an infix expression has balanced parenthesis or not by using .............

Array

Queue

Stack

Tree

Discuss

Answer: (c).Stack

Q77.

n elements of a Queue are to be reversed using another queue. The number of “ADD” and “REMOVE” operations required to do so is:

2*n

4*n

The task cannot be accomplished

Discuss

Answer: (d).The task cannot be accomplished

Q78.

One can convert an infix expression to a postfix expression using a ..............

Stack

Queue

Deque

None of these

Discuss

Answer: (a).Stack

Q79.

Which of the following types of expressions do not require precedence rules for evaluation?

fully parenthesised infix expression

postfix expression

partially parenthesised infix expression

more than one of the above

Discuss

Answer: (a).fully parenthesised infix expression

Q80.

The postfix form of A ^ B * C - D + E/ F/ (G + H)

AB^C*D-EF/GH+/+

AB^CD-EP/GH+/+*

ABCDEFGH+//+-*^

AB^D +EFGH +//*+

Discuss

Answer: (a). AB^C*D-EF/GH+/+

Page 8 of 25

Welcome to the Stacks and Queues MCQs Page

Stacks and Queues MCQs | Page 8 of 25

Explore more Topics under Data Structures and Algorithms

Data Structures Basics

Data Types and Abstraction

Algorithm Complexity

Arrays and Pointers

Linked Lists

Recursion

Trees

Graphs

String Operations

Sorting and Searching

Object Oriented Programming

Dynamic Programming

Suggested Topics

Computer Architecture

Data Structures and Algorithms

Embedded Systems

CSS

MongoDB

Object Oriented Programming Using C++

Cloud Computing

Digital Communication

Web Technologies