Foundations of Data Structures and Algorithms MCQs

Topic-wise practice questions for Data Structures & Algorithms. Test your knowledge, check solutions on demand, and pace your preparation.

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Q101easy
What is the main advantage of Double Hashing over Linear Probing?
Q102hard
If you want to find the shortest path in an Unweighted graph, which traversal logic is most efficient?
Q103medium
An algorithm uses O(n) extra space to process an array of size n. If n increases from 1,000 to 1,000,000, what happens to the extra memory required?
Q104easy
What is Primary Clustering in Hash Tables?
Q105easy
In a tree, the Height of the root node is equivalent to:
Q106medium
You have an algorithm that uses a significant amount of extra RAM (O(n)) to achieve a very fast runtime (O(1)). This is a classic example of:
Q107medium
Why is an Adjacency Matrix often considered inefficient for large-scale real- world graphs like the internet?
Q108medium
After the first pass of Bubble Sort (ascending) on array [5, 1, 4, 2, 8], what is the resulting state?