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Which data structure uses LIFO (Last In First Out) principle?
A. Stack
B. Queue
C. Linked List
D. Tree
Answer: Stack
Which data structure uses FIFO (First In First Out) principle?
A. Queue
B. Stack
C. Heap
D. Tree
Answer: Queue
Which of the following algorithms is stable?
A. Merge Sort
B. Quick Sort
C. Heap Sort
D. Selection Sort
Answer: Merge Sort
What is the time complexity of Merge Sort in the worst case?
A. O(n log n)
B. O(n^2)
C. O(log n)
D. O(n)
Answer: O(n log n)
Which search algorithm has the best-case time complexity of O(1)?
A. Binary Search
B. Linear Search
C. Jump Search
D. Exponential Search
Answer: Binary Search
Which of the following algorithms is based on a divide-and-conquer strategy?
A. Merge Sort
B. Insertion Sort
C. Selection Sort
D. Bubble Sort
Answer: Merge Sort
Which sorting algorithm uses a pivot to partition elements into two subarrays?
A. Quick Sort
B. Merge Sort
C. Heap Sort
D. Selection Sort
Answer: Quick Sort
Which search algorithm uses repeated halving to find an element in a sorted array?
A. Binary Search
B. Jump Search
C. Exponential Search
D. Interpolation Search
Answer: Binary Search
Which algorithm is most suitable for sorting data in a file that doesn’t fit in memory?
A. External Merge Sort
B. Heap Sort
C. Quick Sort
D. Selection Sort
Answer: External Merge Sort