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Python: Which statement about Dictionaries and Hash Tables is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about Dictionaries and Hash Tables is the strongest interview answer?

  1. Dictionaries and Hash Tables is mostly a naming style choice and has little effect on runtime behavior or design tradeoffs.
  2. Dictionaries and Hash Tables exists mainly to reduce the number of files in a Python project.
  3. Dictionaries and Hash Tables matters only for frontend scripting and not for backend or automation code.
  4. Python dictionaries are hash-table-based mappings that provide fast average-case key lookup, update, and membership checks.

Hint

Start with the core rule behind Dictionaries and Hash Tables.

Answer and rationale

Correct answer: D. Python dictionaries are hash-table-based mappings that provide fast average-case key lookup, update, and membership checks.

Python dictionaries are hash-table-based mappings that provide fast average-case key lookup, update, and membership checks. This is the base concept interviewers commonly test first.

Track: Python