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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 5 of 32

Explore more Topics under Data Structures and Algorithms

Q41.
A binary tree in which if all its levels except possibly the last, have the maximum number of nodes and all the nodes at the last level appear as far left as possible, is known as

a.

full binary tree

b.

AVL tree

c.

threaded tree

d.

complete binary tree

Discuss
Answer: (a).full binary tree
Q42.
A full binary tree with n leaves contains

a.

n nodes

b.

log n 2 nodes

c.

2n –1 nodes

d.

2 nodes

Discuss
Answer: (c).2n –1 nodes
Q43.
The number of different directed trees with 3 nodes are

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (b).3
Q44.
One can convert a binary tree into its mirror image by traversing it in

a.

inorder

b.

preorder

c.

postorder

d.

any order

Discuss
Answer: (c).postorder
Q45.
A B-tree of minimum degree t can maximum _____ pointers in a node.

a.

t–1

b.

2t–1

c.

2t

d.

t

Discuss
Answer: (d).t
Q46.
A BST is traversed in the following order recursively: Right, root, left. The output sequence will be in

a.

Ascending order

b.

Descending order

c.

Bitomic sequence

d.

No specific order

Discuss
Answer: (b).Descending order
Q47.
The pre-order and post order traversal of a Binary Tree generates the same output. The tree can have maximum

a.

Three nodes

b.

Two nodes

c.

One node

d.

Any number of nodes

Discuss
Answer: (c).One node
Q48.
A binary tree of depth “d” is an almost complete binary tree if

a.

Each leaf in the tree is either at level “d” or at level “d–1”

b.

For any node “n” in the tree with a right descendent at level “d” all the left descendents of “n” that are leaves, are also at level “d”

c.

Both a and b

d.

None of the above

Discuss
Answer: (c).Both a and b
Q49.
What is the maximum possible number of nodes in a binary tree at level 6?

a.

36

b.

6

c.

1

d.

64

Discuss
Answer: (d).64
Q50.
How many nodes in a tree have no ancestors.

a.

0

b.

1

c.

2

d.

n

Discuss
Answer: (b).1
Page 5 of 32

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