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Welcome to the Trees MCQs Page

Dive deep into the fascinating world of Trees with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Trees, a crucial aspect of Data Structures and Algorithms. In this section, you will encounter a diverse range of MCQs that cover various aspects of Trees, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Structures and Algorithms.

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Check out the MCQs below to embark on an enriching journey through Trees. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Data Structures and Algorithms.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Trees. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Trees MCQs | Page 4 of 32

Q31.
The post order traversal of a binary tree is DEBFCA. Find out the pre order traversal
Discuss
Answer: (c).ABDECF
Q32.
In a binary tree, certain null entries are replaced by special pointers which point to nodes higher in the tree for efficiency. These special pointers are called
Discuss
Answer: (d).thread
Q33.
The in order traversal of tree will yield a sorted listing of elements of tree in
Discuss
Answer: (b).Binary search trees
Discuss
Answer: (b).Values in a node is greater than every value in children of it
Q35.
Let T be a binary search tree with 15 nodes. The minimum and maximum possible heights of T are:

Note: The height of a tree with a single node is 0.
Discuss
Answer: (b).3 and 14 respectively
Q36.
Let T be a tree with 10 vertices. The sum of the degrees of all the vertices in T is _____.
Discuss
Answer: (a).18
Discuss
Answer: (d).cannot say
Q38.
If a node having two children is deleted from a binary tree, it is replaced by its
Discuss
Answer: (b).Inorder successor
Q39.
A full binary tree with 2n+1 nodes contain
Discuss
Answer: (b).n non-leaf nodes
Q40.
If a node in a BST has two children, then its inorder predecessor has
Discuss
Answer: (b).no right child
Page 4 of 32

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