Question Discussion & Solution

MCQ

A BST is traversed in the following order recursively: Right, root, left. The output sequence will be in

Ascending order

Descending order

Bitomic sequence

No specific order

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MCQ

To obtain a prefix expression, which of the tree traversals is used?

Level-order traversal

Pre-order traversal

Post-order traversal

In-order traversal

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MCQ

A binary tree whose every node has either zero or two children is called

Complete binary tree

Binary search tree

Extended binary tree

None of above

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MCQ

Each node of a tree stores a data value and has zero or more pointers pointing to the other nodes of the tree, which are also known as its__________.

Child nodes

Leaf nodes

Root

None of the above

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Which of the following remarks about Tree- indexing are true?

It is an m-ary tree

Successful searches should terminate in leaf nodes

Unsuccessful searches may terminate in leaf nodes level of the tree structure

All of these

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MCQ

Select the code snippet which performs in-order traversal.

a)

public void inorder(Tree root)
{
 System.out.println(root.data);
 inorder(root.left);
 inorder(root.right);
}

b)

public void inorder(Tree root)
{
 inorder(root.left);
 System.out.println(root.data);
 inorder(root.right);
}

c)

public void inorder(Tree root)
{
 System.out.println(root.data);
 inorder(root.right);
 inorder(root.left);
}

d) None of the mentioned

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Hash based structures

Graphs

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