# Toughest Data Structure Exam Quiz!

66 Questions | Total Attempts: 177  Settings Create your own Quiz Data structure is the specific way to store and organize information so that the data can be successfully accessed. For this quiz, you should understand what a valid list operation is, the name of the second child vertex on a binary tree, all trees' property, how many children each vertex has, etc. This quiz will thoroughly prepare you for the most challenging data structure exam.

• 1.
Insert, Append, Delete, and Next are all valid list operations.
• A.

True

• B.

False

• 2.
Postfix notation may not contain negative numbers.
• A.

True

• B.

False

• 3.
An ordered tree in which each vertex has 0, 1, or 2 children.
• 4.
The name of the second child of a vertex on a binary tree.
• 5.
A node connected via edges to a higher node.
• 6.
If "X" is a descendent of "Y", then "Y" is a __________ of "X".
• 7.
All the descendents of a vertex.
• 8.
The length of the longest path from a vertex to a leaf that is a descendent of the vertex.
• A.

Height

• B.

Depth

• 9.
All parents have the same depth, but not necessarily the same height.
• A.

True - parents

• B.

False - siblings

• 10.
Property of all trees.
• A.

#Edges = #Nodes - 1

• B.

#Nodes = #Edges - 1

• 11.
An ordered tree in which each vertex has either no children, one child, or two children.
• A.

Sub Tree

• B.

Ordered Tree

• C.

Binary Tree

• 12.
Every vertex has two children or is a leaf.
• A.

Perfect Binary Tree

• B.

Full Binary Tree

• 13.
The "best case" search time for a B.S.T. is O(n). (where n = the number of nodes in the tree)
• A.

True

• B.

False

• 14.
A Red-Black tree is a BST tree.
• A.

True

• B.

False

• 15.
A BST tree is always balanced.
• A.

True

• B.

False

• 16.
All AVL trees are BST.
• A.

True

• B.

False

• 17.
For a normal (double-linked) binary tree, 8 pointers are assigned to each node.
• A.

True

• B.

False

• 18.
Inserting a node in an AVL tree will sometimes change the height of the tree.
• A.

True

• B.

False

• 19.
A hash table tends to perform better overall (bot time and space) than an array, linked list, or balanced B.S.T.
• A.

True

• B.

False

• 20.
Linear probing is not a good solution for clustering.
• A.

True

• B.

False

• 21.
Linear probing uses the number of times the rehash function has been applied as a value in the hash formula.
• A.

True

• B.

False

• 22.
What is the disadvantage of using buckets for collision resolution?
• A.

The search is long

• B.

It takes longer to walk down

• C.

Wasted space

• D.

Not knowing how big the bucket is

• E.

The return time

• 23.
Choose two ways to resolve problems following a deletion in a list using linear probing.
• A.

Use recursion

• B.

Using chain down the list

• C.

Shift Everything

• D.

Insert null in deleted vairable

• 24.
Reading a book (cover to cover) is an example of Pre Order Traversal.
• A.

True

• B.

False

• 25.
Which are Binary Trees?
• A.

A

• B.

B

• C.

C

• D.

D

• E.

E

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