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What is the maximum number of nodes in a binary tree of height ‘h’?
A. 2^h – 1
B. h^2 – 1
C. 2h
D. h!
Answer: 2^h – 1
Which of the following data structures is commonly used to implement a priority queue?
A. Heap
B. Stack
C. Array
D. Linked List
Answer: Heap
Which of the following is a divide and conquer algorithm?
A. Merge Sort
B. Bubble Sort
C. Insertion Sort
D. Selection Sort
Answer: Merge Sort
Which algorithm efficiently merges two sorted arrays into one sorted array?
A. Merge Sort
B. Quick Sort
C. Insertion Sort
D. Bubble Sort
Answer: Merge Sort
What is the time complexity of searching for an element in a hash table?
A. O(1)
B. O(n)
C. O(log n)
D. O(n^2)
Answer: O(1)
Which data structure is used to represent hierarchical relationships?
A. Tree
B. Graph
C. Queue
D. Array
Answer: Tree
Which algorithm is the best choice for sorting a nearly sorted array?
A. Insertion Sort
B. Bubble Sort
C. Merge Sort
D. Heap Sort
Answer: Insertion Sort
What is the time complexity of accessing an element in an array by index?
A. O(1)
B. O(n)
C. O(log n)
D. O(n^2)
Answer: O(1)
Which of the following is an example of a self-balancing binary search tree?
A. AVL Tree
B. Binary Tree
C. Heap
D. Linked List
Answer: AVL Tree