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Java: Which statement about Binary Tree Traversals is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about Binary Tree Traversals is the strongest interview answer?

  1. Binary Tree Traversals is mostly a naming style choice and has little effect on runtime or design.
  2. Preorder, inorder, postorder, and level-order traversals visit the same tree in different meaningful sequences.
  3. Binary Tree Traversals exists mainly to reduce the number of Java files in a project.
  4. Binary Tree Traversals matters only for frontend frameworks, not for core Java applications.

Hint

Start with the core rule behind Binary Tree Traversals.

Answer and rationale

Correct answer: B. Preorder, inorder, postorder, and level-order traversals visit the same tree in different meaningful sequences.

Preorder, inorder, postorder, and level-order traversals visit the same tree in different meaningful sequences. This is the base concept interviewers commonly test first.

Track: Java