Graphs

The video tutorial introduces graphs as a crucial data structure, explaining their components, types, and real-world applications. It compares graphs with trees, highlighting the differences in structure and use cases. The tutorial also covers various types of graphs, such as directed, undirected, weighted, and cyclic, and discusses their importance in fields like social media and ecommerce.

What is a key difference between trees and graphs?

• Trees are a type of graph with a hierarchical structure.

• Graphs can have multiple roots, trees have only one.

• Graphs have nodes and edges, trees do not.

• Trees have cycles, graphs do not.

In an undirected graph, how is the connection between two nodes represented?

• As a weighted path.

• As a hierarchical link.

• As a two-way street.

• As a one-way street.

Which type of graph is used to represent one-way relationships?

• Undirected graph

• Unweighted graph

• Directed graph

• Weighted graph

How do social media platforms use graphs?

• To calculate user engagement

• To suggest friends and content

• To create user profiles

• To store user data

What is a common use of weighted graphs in streaming services?

• To store user data

• To manage server loads

• To suggest similar content

• To calculate subscription fees

What is an adjacency list used for in graph storage?

• To store the weight of edges

• To list all nodes in the graph

• To represent connections between nodes

• To calculate the shortest path

Which graph storage method is least popular due to its complexity?

• Adjacency matrix

• Edge list

• Adjacency list

• Node list

How do companies like Amazon use graph algorithms?

• To optimize delivery routes

• To design their website layout

• To manage employee schedules

• To track customer purchases

What is a practical application of graph algorithms in cab services?

• Tracking vehicle maintenance

• Finding the shortest path

• Calculating fare prices

• Scheduling driver shifts

Why is it important for delivery companies to use graph algorithms?

• To expand their delivery areas

• To increase the number of deliveries

• To hire more delivery personnel

• To reduce delivery times and costs