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    • Python Libraries

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    Question 1

    What does the heapq module in Python provide?


    • A

      Binary Search Tree implementation

    • B

      Priority Queue via heaps

    • C

      Balanced AVL Tree

    • D

      Linked List operations


    Question 2

    What will be the output of the following code?

    Python 
    import heapq
nums = [4, 1, 3]
heapq.heapify(nums)
print(nums[0])



    • A

      4

    • B

      1

    • C

      3

    • D

      [1, 3, 4]

    Question 3

    What does heapq.heappush() do?


    • A

      Pops the largest element

    • B

      Pushes an element and maintains max-heap

    • C

      Inserts element and maintains min-heap

    • D

      Sorts the list in-place


    Question 4

    Which of the following is true about bisect.insort()?


    • A

      Appends item without sorting

    • B

      Inserts item while maintaining sorted order

    • C

      Randomly inserts item

    • D

      Removes item at index

    Question 5

    Which stream does sys.stderr represent?


    • A

      Standard input

    • B

      Standard output

    • C

      Standard error

    • D

      Debug log

    Question 6

    What will be the result of this code?

    Python 
    import array
arr = array.array('i', [1, 2, 3])
arr.append(4)
print(arr.tolist())



    • A

      [1, 2, 3]

    • B

      [1, 2, 3, 4]

    • C

      [4, 3, 2, 1]

    • D

      Error due to type mismatch

    Question 7

    What will this output?

    Python 
    import platform
print(platform.system())



    • A

      Python version

    • B

      OS name like 'Windows' or 'Linux'

    • C

      CPU name

    • D

       Hostname


    Question 8

    What will the following code print?

    Python 
    import platform
print(platform.uname().node)


    • A

      CPU vendor

    • B

      System version

    • C

      Hostname

    • D

      Username

    Question 9

    What will this code output?

    Python 
    import os
os.makedirs("dir1/dir2")


    • A

      Creates one directory only

    • B

      Raises an error

    • C

      Creates nested directories dir1 and dir2

    • D

      Deletes dir2 if exists

    Question 10

    What is the purpose of functools.partial()?

    • A

      Creates partial copies of data

    • B

      Fixes some function arguments ahead of time

    • C

      Delays execution

    • D

      Wraps functions in lambdas

    There are 13 questions to complete.

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