Which of the following statements is TRUE about trees? O For an array-based complete binary tree, it takes only constant time to access a node's parent. A binary tree node can never be a root and a leaf at the same time. The three cases of removing a node in a binary search tree are deleting the root, deleting a leaf node, and deleting an internal node (a node that is other than the root and the leaf nodes). O Performing a post-order traversal on an expression tree will not necessarily produce a post-fix expression.

Which of the following statements is TRUE about trees? O For an array-based complete binary tree, it takes only constant time to access a node's parent. A binary tree node can never be a root and a leaf at the same time. The three cases of removing a node in a binary search tree are deleting the root, deleting a leaf node, and deleting an internal node (a node that is other than the root and the leaf nodes). O Performing a post-order traversal on an expression tree will not necessarily produce a post-fix expression.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

100%

Which of the following statements is TRUE about trees?
O
For an array-based complete binary tree, it takes only constant time to access a
node's parent.
A binary tree node can never be a root and a leaf at the same time.
The three cases of removing a node in a binary search tree are deleting the root,
deleting a leaf node, and deleting an internal node (a node that is other than the
root and the leaf nodes).
O Performing a post-order traversal on an expression tree will not necessarily
produce a post-fix expression.

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