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Python: Which statement about Trie / Prefix Tree is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about Trie / Prefix Tree is the strongest interview answer?

  1. Trie / Prefix Tree is mostly a naming style choice and has little effect on runtime behavior or design tradeoffs.
  2. Trie / Prefix Tree exists mainly to reduce the number of files in a Python project.
  3. Trie / Prefix Tree matters only for frontend scripting and not for backend or automation code.
  4. A trie stores characters or tokens along paths so shared prefixes are represented once and prefix queries are efficient.

Hint

Start with the core rule behind Trie / Prefix Tree.

Answer and rationale

Correct answer: D. A trie stores characters or tokens along paths so shared prefixes are represented once and prefix queries are efficient.

A trie stores characters or tokens along paths so shared prefixes are represented once and prefix queries are efficient. This is the base concept interviewers commonly test first.

Track: Python