Python Dictionary MCQs with answers Page - 8

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Q. What is the best way to remove all keys from a dictionary without deleting the dictionary?

  • (A) del dict
  • (B) dict = {}
  • (C) dict.clear()
  • (D) dict.removeAll()

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Q. How would you check if a dictionary is empty?

  • (A) len(dict) == 0
  • (B) dict.empty()
  • (C) dict == None
  • (D) dict.length == 0

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Q. What does `d.get('x', 'default')` return if 'x' is not a key?

  • (A) Error
  • (B) None
  • (C) False
  • (D) default

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Q. Can a dictionary key be a tuple?

  • (A) Yes, if the tuple contains only immutable elements
  • (B) Yes, any tuple is allowed
  • (C) No, tuples are not hashable
  • (D) Only in Python 2

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Q. Which method merges two dictionaries without modifying the originals (Python 3.9+)?

  • (A) d1 + d2
  • (B) merge(d1, d2)
  • (C) d1 | d2
  • (D) d1.append(d2)

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Q. What will `max({1: 'a', 3: 'b', 2: 'c'})` return?

  • (A) 3
  • (B) 'b'
  • (C) Error
  • (D) None

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Q. What will be the output of `sorted({'b': 2, 'a': 1})`?

  • (A) ['a', 'b']
  • (B) [1, 2]
  • (C) ['b', 'a']
  • (D) {'a': 1, 'b': 2}

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Q. How would you access the last inserted key-value pair in a dictionary?

  • (A) dict.last()
  • (B) dict[-1]
  • (C) dict.popitem()
  • (D) dict.peek()

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