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  • What is the level of root node of a tree?
Multiple choice

What is the level of root node of a tree?

  1. -1

  2. 0

  3. 1

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

By convention, the root node of a tree is at level 0. Its direct children are at level 1, grandchildren at level 2, and so on. This zero-based indexing is standard in tree data structures.

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