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🧩 Data Structure MCQs

Welcome to your 🧩 Data Structure MCQs

Which of the following is a linear data structure?

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Which data structure is used for implementing priority queue?

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What is the time complexity of accessing an element in an array?

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Which data structure uses LIFO (Last In, First Out)?

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What is the maximum number of nodes in a binary tree of height 4?

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The process of adding an element in a stack is called —

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The process of removing an element from a queue is called —

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What is the worst-case time complexity of searching an element in a linked list?

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What is the best case time complexity of QuickSort?

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In a circular queue, how is the last position connected?

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Which of the following data structures is non-linear?

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Which traversal gives nodes in ascending order in a Binary Search Tree?

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Which of the following is a self-balancing binary search tree?

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Which data structure is used for recursion?

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Which data structure is used in DFS (Depth First Search)?

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Which operation is not possible on a queue?

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Which data structure is used in BFS (Breadth First Search)?

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What is the minimum number of nodes in a binary tree of height 3?

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In a linked list, the elements are stored in —

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Hashing is used to —

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