Data Structures Question Bank With Answers PDF Free Download

Data Structures Question Bank With Answers PDF: Are you a student and facing trouble in finding the right questions for your preparation for data structures exam? Students can overcome this problem just by downloading the data structures question bank with answers PDF, and it will eliminate all the troubles. It will make the preparation of the students more efficient.

Data structures question bank with answers PDF helps the students to gain a piece of detailed knowledge of data structures, and this will strengthen the core knowledge of the students. With a strong base, students can secure good marks in the exams. Data structures question bank with answers PDF is prepared to keep in mind the syllabus of data structures so that the students can precisely follow the curriculum.

Students can get access to some of the best reference books of the data structure and Lecture Notes from this article which will help them in enhancing their preparation.

About Data Structures Question Bank With Answers

The data structure, in computer science, is defined as a data organisation, management, and storage format that allows efficient access and modification. In simpler words, data structures can be termed as the collection of data values, the relationship prevailing among them and the functions and operations that are possible to be applied to the data.

They are the basis of Abstract Data Types (ADT). The ADT is used to define the logical form of data type, whereas the data structure describes the physical form of a data type. Data structures are of different types and are suited for different kind of applications, and some are also highly specialised for specific tasks only. Data structures provide a medium to manage a large amount of data efficiently for uses such as databases and internet indexing services.

Data structure generally depends on the capability of the computer in fetching and storing data inside the memory of computer, which is to be specified by a pointer. The implementation of data structure generally requires to write a set of procedures that would create and manipulate the instances of a particular structure. It is not possible to analyse the efficiency of data structure separately from the operations.

All these concepts and basics can be learned from the data structures question bank with answers PDF as it includes questions that have the ability to give a detailed overview of a data structure without any doubt.

Data Structures Question Bank With Answers PDF Free Download

Students facing problems in the data structure chapter must download data structures question bank with answers PDF to get a clear overview of the chapter. The questions in the PDF will help students in enhancing their preparation for the exams. An efficient preparation for the exams can result in the scoring of good marks in the exams.

The questions included in the data structures question bank with answers PDF helps the students by giving them a preview of the problem they are going to face in the exams thus motivating them to get prepared according to it. This PDF will wash away all the weaknesses of the students and will help them to strengthen their cores.

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Data Structures Reference Books

Books are the best source of gaining knowledge on a particular topic. They give the students a detailed view of the topic, which help them to strengthen their cores. A book can help the students to enhance his/her preparation for the exams and become confident of scoring good marks in the exams.

Referring to one book is not always enough because one book cannot give all the information related to a particular topic. A student who is interested in scoring good marks must try referring more than one books for his/her own benefits.

There are some books of data structures that are considered as best by some experts who have years of experience in this field. Students should refer this books during their preparations. Some of these books are:-

  • Introduction to Algorithms by Thomas H. Corman
  • Algorithms by Robert Sedgewick & Kevin Wayne
  • The Algorithm Design Manual by Steve S.Skiena
  • Algorithms For Interview by Adnan Aziz
  • Algorithms in Nutshell by O’Reilly’s
  • Algorithm Design  by Kleinberg & Tardos
  • The Design and Analysis of Computer Algorithms by Alfred Aho, Jeffrey Ullman, John Hopcraft
  • Data Structures and Algorithms by Aho, Ullman & Hopcraft
  • Python Algorithms: Mastering Basic Algorithms in the Python Language by some Python Programmers

Data Structures Syllabus

  1. Introduction
  • Concept of data structure
  • The need for data structure
  • Advantages of using a data structure
  1. Algorithm and Pseudocode
  • Algorithm and definition
  • Characteristics of the algorithm
  • Elements of algorithm
  • Pseudocode example
  • Difference between algorithm and pseudocode
  1. Function
  • What is function
  • Types of function
  • How function works
  • Functions recursion and how it works
  1. Array
  • Concept of array
  • Array types
  • Basic programs
  • Array with functions
  1. Applications of Stack
  • Arithmetic expression evaluation
  • Notations, infix
  • Postfix, prefix
  • Conversion of infix to postfix
  • Conversion of postfix to infix
  • Evaluation of postfix and prefix
  1. Queue
  • Queue operations
  • Linked and array representation
  • Stack programs
  • Insert and delete operations
  • Circular queue
  • Priority queue
  • Application of queue
  1. LinkedList
  • Concept
  • Difference between LinkedList and array
  • Single linked list
  • Double linked list
  1. Tree
  • Tree terminology
  • Binary tree
  • Completer binary tree
  • Linear queue and its operations
  • Circular queue and its operations
  • Hashing and searching
  1. Pointer
  • Pointer basics
  • Pointer with functions
  • Reference call
  • Array of pointers
  1. Structure
  • Basics
  • Pointer structure variable
  • The structure as function management
  • Using call by member value
  • Hole structure
  1. Stack
  • Operations
  • Programs on stack
  • Push and pop operations
  • Traversing
  • Expression tree and expression manipulation
  • AVL tree, M-way search tree
  1. Graph
  • Graph terminology
  • Representation of graphs
  • Path matrix
  • Graph traversal
  • BFS
  • DFS
  • Minimum spanning tree
  1. Hashing and searching
  • Hash functions
  • Hashing techniques and chaining
  1. Sorting
  • Bubble sort
  • Selection sort
  • Insertion sort
  • Quick sort
  • Merge sort
  • Heap sort
  • Radix sort

Data Structure Important Questions

Students should know the pattern of questions that are coming in the exams. They should learn from which section of the subject most of the questions are coming from. This will help them in their preparation and make them more confident for the final exams. A confident student can easily score the highest possible marks in the exams.

Let us list out some of the important questions that can help a student to enhance his/her preparation and becoming more efficient on this particular chapter data structure:-

  • What is the data structure?
  • Difference between file structure and storage structure
  • When is a binary search best applied?
  • What do you mean by linked list?
  • In what areas data structures can be applied?
  • What do you understand by LIFO?
  • What is the queue?
  • What do you mean by binary trees?
  • Which data structures are meant to be applied while dealing with a recursive function?
  • What do you mean by a stack?
  • Explain binary search tree
  • What are multidimensional arrays?
  • What can be linked lists considered as: linear or non-linear data structures?
  • List the ways how dynamic memory allocation helps in managing data
  • What do you understand by FIFO?
  • What is an ordered list?
  • What do you understand by merge sort?
  • Differentiate between NULL and VOID
  • List out the primary advantages of linked list.
  • What’s the difference between a PUSH and a POP?
  • What is a linear search?
  • How does the variable declaration affect memory allocation?
  • List out the advantages that can come when the heap is over a stack
  • What do you understand by postfix expression?
  • What does data abstraction mean?
  • How to insert a new item in the binary search tree?
  • What are the ways in which a selection sort works for an array?


Data structures question banks with answers PDF can act as a saviour for the students in their final exams. They can increase their knowledge and be experts in this subject with the help of this PDF. The reference books mentioned in this article are trusted to be valuable and have the capability of giving the students a detailed knowledge. The questions mentioned above are some of the important questions that are likely to come in the exams; thus, students should prepare it efficiently. Students can achieve success with this PDF.

Also Refer: Multiple Bus Organisation Notes and Study Material PDF Free Download

Frequently Asked Questions on Data Structure Question Bank With Answers

Question 1. What are the advantages of data structures?

Some of the advantages of data structures are

  • It allows information storage on hard disks.
  • It provides means of management for large datasets, for example, databases or internet indexing services.
  • It is required for designing efficient algorithms.
  • It allows security to storage by providing safe storage of information on a computer.
  • It helps in data usage and processing on a software system.
  • Processing of data can be much easier with the data structure.
  • In the data structure, a person can access the data anytime at any place using the internet, which is a beneficial aspect of data structuring.

Question 2. What are the disadvantages of data structure?

Some of the important disadvantages of the data structure are:-

  • Applications which are using data structure for operations requires a highly qualified professional resource that can manage the operations related to the data structure easily. Acquiring this professional resource is very difficult.
  • If the data structure used to maintain and control the application is more significant, then it must require a lot of workforces. Increase in labour cost will make data structure operations expensive.
  • Designing a data structure is very difficult as it involves a complex algorithm. It will require a lot of time and testing to prove that it is ready to be used in a organisation.

Question 3. What is a binary tree in data structure?

Binary tree in computer science can be defined as a tree data structure in which each node consists of at most two children. These two children are referred to as the left child and the right child. The binary tree sometimes is also interpreted as an undirected rather than as a directed graph. In these cases, the binary tree is an ordered and rooted tree. Some authors also use a rooted binary tree in spite of the binary tree to emphasise on this particular fact.

Question 4. What do you understand by a linked list?

Linked list is defined as a collection in a linear way of data elements whose orders are not mentioned by their physical placement in the memory. Instead, in this case, each element points to the next element. This is a type of data structure that consists of a collection of nodes which together can be represented as a sequence.