Top 100 Data Structures Courses and Mcq’s

Top 100 Data Structures Courses and Mcq’s

Data Structures form the foundation of organizing and managing data effectively within computer systems.

They represent the arrangement, storage, and manipulation of data in a structured format, crucial for efficient algorithm design and problem-solving in computer science.

Learning about data structures is paramount as it provides the tools and techniques to store and retrieve information systematically.

Understanding various data structures like arrays, linked lists, stacks, queues, trees, graphs, and hash tables empowers programmers to choose the right structure for specific tasks, optimizing memory usage and computational efficiency.

Proficiency in data structures enables the development of faster algorithms, enhances code readability, and facilitates the handling of large volumes of data.

Moreover, it lays the groundwork for solving complex problems in various domains such as software development, database management, artificial intelligence, and more.

Overall, mastering data structures is indispensable for creating robust, scalable, and high-performance software systems.


Here are top 100 and assorted courses for Data Structures with special discount from Udemy.


Here are 20 multiple-choice questions (MCQs) about Data Structures along with their respective answers:

Question: What is the primary purpose of data structures in computer science?

A) Storing data in a random manner
B) Organizing and managing data efficiently
C) Limiting data access
D) Reducing data complexity
Answer: B) Organizing and managing data efficiently
Question: Which data structure follows the Last In, First Out (LIFO) principle?

A) Queue
B) Stack
C) Linked List
D) Tree
Answer: B) Stack
Question: What is the time complexity for searching an element in a sorted array using binary search?

A) O(n)
B) O(log n)
C) O(n^2)
D) O(1)
Answer: B) O(log n)
Question: Which data structure allows elements to be accessed from both ends?

A) Queue
B) Stack
C) Array
D) Linked List
Answer: C) Array
Question: What does the term ‘queue’ represent in data structures?

A) FIFO (First In, First Out) data structure
B) LIFO (Last In, First Out) data structure
C) A linear data structure
D) A non-linear data structure
Answer: A) FIFO (First In, First Out) data structure


Question: Which data structure represents a hierarchical structure with nodes having a parent-child relationship?

A) Linked List
B) Array
C) Stack
D) Tree
Answer: D) Tree
Question: What is the key feature of a stack data structure?

A) Allows random access to elements
B) Follows FIFO principle
C) Follows LIFO principle
D) Contains elements with different data types
Answer: C) Follows LIFO principle
Question: Which data structure is a collection of elements with no specific order or sequence?

A) Queue
B) Linked List
C) Stack
D) Set
Answer: D) Set
Question: What is the primary advantage of using a linked list over an array?

A) Constant time access to elements
B) Dynamic size and ease of insertion/deletion
C) Fixed size and faster retrieval of elements
D) Supports random access to elements
Answer: B) Dynamic size and ease of insertion/deletion
Question: Which data structure uses pointers or references for element storage?

A) Array
B) Stack
C) Queue
D) Linked List
Answer: D) Linked List
Question: What is the time complexity for inserting an element at the end of a singly linked list?

A) O(1)
B) O(log n)
C) O(n)
D) O(n^2)
Answer: A) O(1)
Question: Which data structure is suitable for implementing a priority queue?

A) Stack
B) Linked List
C) Queue
D) Heap
Answer: D) Heap
Question: What is the time complexity to find an element in a hash table with a good hash function?

A) O(n)
B) O(log n)
C) O(1)
D) O(n^2)
Answer: C) O(1)
Question: Which sorting algorithm has the worst-case time complexity of O(n^2)?

A) Merge Sort
B) Quick Sort
C) Bubble Sort
D) Insertion Sort
Answer: C) Bubble Sort
Question: Which data structure represents a collection of elements with a linear arrangement and a fixed size?

A) Linked List
B) Queue
C) Stack
D) Array
Answer: D) Array


Question: What is the primary benefit of using a stack data structure?

A) Efficient searching of elements
B) Efficient sorting of elements
C) Memory utilization and function call management
D) Dynamic resizing of elements
Answer: C) Memory utilization and function call management
Question: Which data structure uses the concept of ‘First In, Last Out’?

A) Queue
B) Stack
C) Array
D) Linked List
Answer: B) Stack
Question: What is the time complexity for deleting an element from the front of a queue?

A) O(1)
B) O(log n)
C) O(n)
D) O(n^2)
Answer: A) O(1)
Question: Which data structure represents a non-linear arrangement of elements with nodes having multiple successors?

A) Linked List
B) Queue
C) Stack
D) Graph
Answer: D) Graph
Question: What is the primary purpose of a hash table data structure?

A) Efficient searching and retrieving elements
B) Sorting elements in ascending order
C) Storing elements with fixed sizes
D) Rearranging elements in reverse order
Answer: A) Efficient searching and retrieving elements