Python, Data Structures & Digital Logic Combined Mock #4

Question 1 of 5 Correct: +2 | Negative: -0.5

What will be the output of the following Python code snippet?

data = [10, 20, 30, 40, 50]
print(data[-2::-2])

A [40, 20] B [40, 30, 20, 10] C [50, 30, 10] D [20, 40]

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Question 2 of 5 Correct: +2 | Negative: -0.5

A strict (full) binary tree has 15 internal nodes (nodes with degree 2). How many leaf nodes does this tree have?

A 14 B 15 C 16 D 30

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Question 3 of 5 Correct: +2 | Negative: -0.5

What is the worst-case time complexity of Quick Sort when the array is already sorted in ascending order and the first element is chosen as the pivot?

A O(n log n) B O(n^2) C O(n) D O(log n)

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Question 4 of 5 Correct: +2 | Negative: -0.5

How many 2-input NAND gates are minimum required to implement a 2-input XOR gate?

A 3 B 4 C 5 D 6

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Question 5 of 5 Correct: +2 | Negative: -0.5

In Python, which module is standardly used for serializing and deserializing objects into a binary file (Binary File Handling in NCERT Class XII)?

A csv B pickle C json D os

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