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Python: Which statement about Counter and Frequency Maps is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about Counter and Frequency Maps is the strongest interview answer?

  1. Counter and Frequency Maps is mostly a naming style choice and has little effect on runtime behavior or design tradeoffs.
  2. Counter and Frequency Maps exists mainly to reduce the number of files in a Python project.
  3. Counter and Frequency Maps matters only for frontend scripting and not for backend or automation code.
  4. collections.Counter is a dictionary-based multiset helper for counting repeated values efficiently.

Hint

Start with the core rule behind Counter and Frequency Maps.

Answer and rationale

Correct answer: D. collections.Counter is a dictionary-based multiset helper for counting repeated values efficiently.

collections.Counter is a dictionary-based multiset helper for counting repeated values efficiently. This is the base concept interviewers commonly test first.

Track: Python