Disadvantage of using array representation for binary trees ...

MCQ

Disadvantage of using array representation for binary trees is?

difficulty in knowing children nodes of a node

difficult in finding the parent of a node

have to know the maximum number of nodes possible before creation of trees

difficult to implement

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MCQ

Consider the following nested representation of binary trees indicates y and z are the left right subtrees, respectively, of node x. Note that y and z may be NULL or further nested. Which of the following represents a valid binary tree?

(1(234)(567)

(1 2(4 5 6 7))

(1(2 3 NULL)(4 5))

1((2 3 NULL)4 5 6)7)

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MCQ

What are the conditions for an optimal binary search tree and what is its advantage?

The tree should not be modified and you should know how often the keys are accessed, it improves the lookup cost

You should know the frequency of access of the keys, improves the lookup time

The tree can be modified and you should know the number of elements in the tree before hand, it improves the deletion time

None of the mentioned

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The depth of a binary tree is the highest level number of any ______ in the binary tree.

Leaf node

Parent node

Sibling node

None of the above

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What is a full binary tree?

Each node has exactly zero or two children

Each node has exactly two children

All the leaves are at the same level

Each node has exactly one or two children

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Why we need to a binary tree which is height balanced?

to avoid formation of skew trees

to save memory

to attain faster memory access

to simplify storing

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Abstract data types

Arrays

Lists

Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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