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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 8 of 32

Explore more Topics under Data Structures and Algorithms

Q71.
Traversing a binary tree refers to the process of visiting each and every node of the tree exactly how many times?

a.

Once

b.

Twice

c.

Thrice

d.

None

Discuss
Answer: (a).Once
Q72.
In how many different ways can a tree be traversed?

a.

Two ways

b.

Three ways

c.

One way

d.

It cannot be traversed

Discuss
Answer: (b).Three ways
Q73.
In pre-order traversal, the root node is visited before traversing its________subtrees.

a.

Left

b.

Right

c.

Both (a) and (b)

d.

None of the above

Discuss
Answer: (c).Both (a) and (b)
Q74.
In which traversal, the root node is visited after the traversal of its left subtree and before the traversal of its right subtree?

a.

Pre-order traversal

b.

In-order traversal

c.

Post-order traversal

d.

Level-order traversal

Discuss
Answer: (b).In-order traversal
Q75.
Elements in a nonlinear data structure do not form a sequence for example_________.

a.

Tree

b.

Hash tree

c.

Binary tree

d.

All of the above

Discuss
Answer: (d).All of the above
Q76.
One way is to have the linear relationship between the elements by means of sequential memory locations and such linear structures are called ______.

a.

Linked list

b.

Stacks

c.

Arrays

d.

All are the same

Discuss
Answer: (c).Arrays
Q77.
What is one of the most common operations that is performed on trees?

a.

Traversal of nodes

b.

Threads

c.

Pointers

d.

None of the above

Discuss
Answer: (a).Traversal of nodes
Q78.
In which tree, the right NULL pointer of each node (not having a right child node) points to its in-order successor?

a.

Right-threaded binary tree

b.

Left-threaded binary tree

c.

Full-threaded binary tree

d.

All of the above

Discuss
Answer: (a).Right-threaded binary tree
Q79.
A binary search tree, also known as_________.

a.

Binary tree

b.

Binary sorted tree

c.

Sibling node

d.

Heap trees

Discuss
Answer: (b).Binary sorted tree
Q80.
Which code for an alphabet (set of symbols) is generated by constructing a binary tree with nodes containing the symbols to be encoded and their probabilities of occurrence?

a.

Algorithm

b.

Hughman code

c.

Huffman code

d.

Canonical Huffman codes

Discuss
Answer: (c).Huffman code
Page 8 of 32

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