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Trees Questions

Home > Technical Aptitude > Data Structures > Trees > General Questions
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Choose the correct option.

While converting binary tree into extended binary tree, all the original nodes in binary tree are _____


AInternal nodes on extended tree

BExternal nodes on extended tree

CVanished on extended tree

DIntermediate nodes on extended tree

Answer: Option A

Explanation:

Here is no explanation for this answer

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Which of these classes implement the Collection interface SortedMap. Select the one correct answers.


AHashMap

BHashtable

CTreeMap

DHashSet

ETreeSet

Answer: Option C

Explanation:

Here is no explanation for this answer

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If we delete a node from a balanced binary tree, How can properties of balanced binary tree retain.


ABy rotation the nodes.

BNo Operation needed

Cwill be balanced after new node insetion

DNone of the above

Answer: Option A

Explanation:

b

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Which data structure is used to maintain a dynamic forest using a link or cut operation?


ATop Tree

BArray

CLinked List

DStack

Answer: Option A

Explanation:

Top tree data structure is used to maintain a dynamic forest using link or cut operations. Top tree is a type of data structure which is based on unrooted dynamic binary tree and is used to solve path related problems

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How many edges are present in Edge cluster?


A1

B2

C4

Answer: Option A

Explanation:

A cluster containing only single edge is known as Edge cluster. So there are in total 1 edge present in edge cluster. Cluster in data structure is defined as the subtree that is connect having maximum of 2 vertices known as Boundary Vertices.

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Two balanced binary trees are given with m and n elements respectively. They can be merged into a balanced binary search tree in ____ time.


AO(m+n)

BO(mn)

CO(m)

DO(mlog n)

Answer: Option A

Explanation:

First we store the in-order traversals of both the trees in two separate arrays and then we can merge these sorted sequences in O(m+n) time. And then we construct the balanced tree from this final sorted array.

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What is the longest length path for a node x in random binary search tree for the insertion process?


Alog x

Bx2

Cx!

D4.311 log x

Answer: Option D

Explanation:

Although it is difficult to find the length of the longest path in randomized binary search tree, but it has been found that the longest length is around 4.311 log x.

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A binary tree is a rooted tree but not an ordered tree.


ATRUE

BFALSE

Answer: Option B

Explanation:

A binary tree is a rooted tree and also an ordered tree (i.e) every node in a binary tree has at most two children.

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Is insertion and deletion operation faster in rope than an array?


ATRUE

BFALSE

Answer: Option A

Explanation:

Here is no explanation for this answer

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Binary tree sort implemented using a self balancing binary search tree takes O(n log n) time in the worst case but still it is slower than merge sort.


ATRUE

BFALSE

Answer: Option A

Explanation:

The worst case performance of binary tree sort is O(n log n) when it is implemented using a self balancing binary search tree. Self balancing binary search trees perform transformations to balance the tree, which caused balancing overhead. Due to this overhead, binary tree sort is slower than merger sort.

Workspace

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