UK: 43-foot Christmas tree from Kielder Forest, Northumberland, arrives in Westminster.

What is the primary focus of the introduction section?

• History of tree data structures

• Comparison between trees and graphs

• Basic understanding of what a tree is

• Detailed analysis of tree algorithms

Which of the following best describes the structure of a tree?

• A random collection of nodes

• A linear sequence of nodes

• A hierarchical arrangement of nodes

• A circular arrangement of nodes

What is a key component of a tree structure?

• A loop of nodes

• A set of disconnected nodes

• A single node with no connections

• Edges connecting nodes

Which of the following is an application of trees?

• Sorting algorithms

• Data storage and retrieval

• All of the above

• Network routing

Why are trees important in computer science?

• They provide a way to organize data hierarchically

• They are the simplest data structure to implement

• They are the fastest data structure for all operations

• They are used exclusively in web development