Free Data Structures and Algorithms Mock Test: Placement

Practice the free Online Data Structures and Algorithms Test- DSA to get success in future placement. This interactive MCQ-based online mock test will help you in the time of final placements. Explore a wide range of topics, from arrays and linked lists to dynamic programming and graph algorithms, all curated to boost your problem-solving abilities.

General Instructions
1. Each DSA test contains 15 questions.
2. Total allotted time is 20 minutes for each test.
3. No negative marking.
4. Try to finish it on time.
5. The Test will be submitted automatically if the time expired.
6. Don’t refresh the page.

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DSA Test 1

1 / 15

Which of the following data structures is used to implement a Trie?

2 / 15

Which of the following sorting algorithms has the best-case time complexity of O(n)?

3 / 15

Which of the following data structures is used to implement a hash table?

4 / 15

Which data structure is used to implement recursion?

5 / 15

Which of the following algorithms is used to find the shortest path in a graph with non-negative edge weights?

6 / 15

Which of the following data structures is used to implement a binary heap?

7 / 15

Which of the following sorting algorithms has the worst-case time complexity of O(n^2)?

8 / 15

Which of the following data structures is used to implement a min-heap?

9 / 15

Which of the following is an example of a non-linear data structure?

10 / 15

Which of the following algorithms is used to find the strongly connected components in a directed graph?

11 / 15

Which of the following algorithms is used to find the maximum subarray sum in an array?

12 / 15

Which data structure is used to implement recursion?

13 / 15

Which of the following is not a type of hash function collision resolution technique?

14 / 15

Which data structure allows you to access elements in constant time?

15 / 15

Which data structure is used to implement a hash table?

Your score is

The average score is 42%

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DSA Test 2

1 / 15

Which of the following algorithms is used to find the minimum spanning tree in a graph?

2 / 15

Which data structure uses the “First In First Out” (FIFO) principle?

3 / 15

Which of the following data structures is used to implement a balanced binary search tree?

4 / 15

Which of the following sorting algorithms has the best-case time complexity of O(n log n)?

5 / 15

What is the time complexity of the best case scenario for selection sort algorithm?

6 / 15

Which of the following is not a search algorithm?

7 / 15

Which data structure is used to implement a priority queue?

8 / 15

Which of the following algorithms is used to find the maximum sum subarray of a given array?

9 / 15

What is the time complexity of the worst case scenario for searching an element in a binary search tree?

10 / 15

Which of the following algorithms is used to find the shortest path in a graph with non-negative edge weights?

11 / 15

What is the time complexity of the best case scenario for merge sort algorithm?

12 / 15

What is the time complexity of the binary search algorithm?

13 / 15

Which of the following algorithms is used to perform topological sorting on a directed acyclic graph?

14 / 15

Which of the following algorithms is used to find the shortest path in a graph with negative edge weights?

15 / 15

Which of the following data structures uses a heap data structure internally?

Your score is

The average score is 52%

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DSA Test 3

1 / 15

Which of the following algorithms is used to find the shortest path in a graph with non-negative edge weights?

2 / 15

Which sorting algorithm has the worst case time complexity of O(n^2)?

3 / 15

What is the time complexity of binary search algorithm?

4 / 15

Which of the following is not a type of hash function?

5 / 15

Which of the following is not a type of graph?

6 / 15

Which of the following data structures can be used to implement a set?

7 / 15

Which of the following data structures is NOT a linear data structure?

8 / 15

Which of the following algorithms is used to find the longest common subsequence between two strings?

9 / 15

Which of the following data structures is used to implement a deque?

10 / 15

Which of the following is not a type of tree traversal?

11 / 15

Which of the following data structures uses a Last In First Out (LIFO) principle?

12 / 15

In which data structure does the insertion and deletion of elements happen from the same end?

13 / 15

Which sorting algorithm has the best case time complexity of O(n)?

14 / 15

What is the time complexity of insertion operation in a binary search tree?

15 / 15

Which of the following is an example of a linear data structure?

Your score is

The average score is 68%

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DSA Test 4

1 / 15

Which of the following data structures is used to implement a trie?

2 / 15

Which of the following data structures is used to implement a min-heap?

3 / 15

Which of the following sorting algorithms is stable?

4 / 15

Which of the following data structures is used to implement a queue?

5 / 15

What is the worst-case time complexity of the selection sort algorithm?

6 / 15

Which of the following data structures allows efficient searching, insertion, and deletion operations?

7 / 15

Which data structure uses FIFO ordering?

8 / 15

Which of the following data structures is used to implement a disjoint-set data structure?

9 / 15

Which of the following algorithms is used to find the maximum flow in a network flow problem?

10 / 15

Which of the following is NOT a type of sorting algorithm?

11 / 15

Which of the following algorithms is used to find the shortest path between two nodes in a graph?

12 / 15

Which of the following traversal methods is used to visit all the nodes of a binary tree in level order?

13 / 15

Which of the following data structures is used to implement a hash set?

14 / 15

Which of the following data structures uses LIFO ordering?

15 / 15

Which data structure is used for breadth-first traversal of a graph?

Your score is

The average score is 54%

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DSA Test 5

1 / 15

Which of the following algorithms is used to find the articulation points in a graph?

2 / 15

Which of the following data structures can be used to implement a stack?

3 / 15

Which of the following data structures is used to implement a disjoint-set data structure?

4 / 15

What is the time complexity of binary search algorithm?

5 / 15

Which of the following is NOT a type of tree traversal?

6 / 15

What is the worst-case time complexity of the bubble sort algorithm?

7 / 15

Which of the following sorting algorithms is an in-place sorting algorithm?

8 / 15

Which data structure allows you to access elements from both ends in O(1) time?

9 / 15

Which of the following sorting algorithms has the worst time complexity?

10 / 15

Which of the following data structures is used to implement a binary search?

11 / 15

What is the time complexity of the worst-case scenario for binary search tree operations?

12 / 15

What is the time complexity of the worst-case scenario for quick sort algorithm?

13 / 15

Which data structure is used to implement a FIFO queue?

14 / 15

Which of the following data structures can be used to implement a graph?

15 / 15

Which data structure is used to implement a LIFO stack?

Your score is

The average score is 45%

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Data Structure and Algorithm

Data Structure

A data structure is a methodical approach to efficiently arrange data for use. It’s a method of setting up data on a computer so that it may be effectively accessed and modified. Almost all software systems and programs that have been developed use one of the many basic or complex forms of data structures. It’s critical to comprehend data structures in order to create effective and efficient algorithms.

Types of Data Structure

  • Array
  • String
  • Linked List
  • Double Linked List
  • Circular Linked List
  • Stack
  • Queue
  • Heap
  • Hash
  • Tree
  • Graph

Algorithm

An algorithm is a methodical process that specifies a series of commands to be carried out in a specific order in order to produce the intended result. Algorithms can be implemented in multiple programming languages since they are often developed independently of the underlying language.

Types of Algorithm

  • Searching Algorithms
  • Sorting Algorithms
  • Divide and Conquer Algorithms
  • Pattern Searching
  • Mathematical Algorithms
  • Greedy Algorithms
  • Backtracking Algorithms
Frequently Asked Questions

The full form of DSA is Data Structures and Algorithms. As the name itself suggests it is a combination of two separate yet in related topics data structure and algorithms.

A key component of computer science that teaches you how to approach and solve complicated issues methodically is called Data Structures and Algorithms (DSA). Your software will operate more quickly if you choose the appropriate data structure and method, especially when handling large amounts of data.

An algorithm is a procedure or a collection of precise instructions that are usually used to carry out a certain kind of calculation or solve a certain class of issues. To put it another way, it’s a series of steps taken one after the other to complete a task.

You can learn DSA in 4 easy steps:

  • Learn at least one Programming language
  • Learn about complexities i.e. Time complexity and Space Complexity
  • Learn Data Structure and Algorithms
  • Practice practice and more practice as practice makes man perfect.

There are numerous practice exams available from TNP Officer. A free DSA mock exam is available for you to take at www.tnpofficer.com . 

Data Structures and Algorithms (DSA) tests play a critical role in corporate interviews, particularly for technical positions in the tech industry. Mastering DSA is essential for excelling in corporate interviews, as it demonstrates technical aptitude, problem-solving ability, and the capacity to write efficient, scalable code