Peer-to-Peer-P2P-Networks-A-Simple-Guide.pptx

DATA COMMUNICATION AND DBMS

1. Peer-to-Peer (P2P) Networks: A Simple Guide Welcome! This presentation explores Peer-to-Peer (P2P) networks. We'll uncover what they are and why they matter. No prior knowledge is needed, just curiosity!

2. How P2P Networks Work: Part 1 P2P networks differ from centralized systems. Each computer acts as both client and server. This allows direct resource sharing with other users . In a Peer-to-Peer (P2P) network , there is no central server. Instead, all devices (nodes) are directly connected and share data among themselves. Each node acts as both a client and a server , meaning it can request as well as provide data. This allows for direct communication without relying on a middleman. Nodes contribute their own bandwidth, storage, and processing power , making the network more efficient and scalable. Client and server acts as both Sharing Resources directly with other users.

3. How P2P Networks Work: Part 2 In a P2P network , users can request and provide files simultaneously , ensuring faster and more efficient data sharing. Instead of downloading from a central server, files are retrieved in parts from multiple peers. At the same time, users also share files, strengthening the network. A distributed database stores information across multiple nodes, preventing a single point of failure. This makes P2P networks reliable, scalable, and efficient for file sharing and decentralized applications. Request files Provide files Distributed database

4. P2P Network Example: Visual Diagram This diagram displays computers connected directly. Arrows show file sharing among nodes. Each node requests and provides resources. They interact using a defined protocol. Direct connection computer to computer Requesting resources Any node can request

5. Visual Explanation of P2P Network This diagram represents a Peer-to-Peer (P2P) architecture , where multiple nodes (devices) are directly connected to each other without a central server. Each node can act as both a client and a server, allowing them to share data and resources efficiently . A simple way to understand this is like a group of friends sharing notes . Instead of one person collecting and distributing all notes, everyone shares directly with each other. This makes the process faster, more reliable, and less dependent on a single person .

6. Real-Time P2P Application: Video Conferencing P2P enhances video conferencing. Participants share video/audio directly. This reduces central server reliance. It lowers latency and improves scalability for large groups. Video Audio Reduced reliance

7. Advantages of P2P Networks P2P networks offer benefits. They increase resilience. They scale easily without impacting performance. They are cost-effective and decentralize control and privacy. Resilience no single point of failure. Scalability easily add more users. Cost-effective Reduced server infrastructure Decentralized System No central server Fault Tolerance Self-Organizing If one node fails, others continue sharing data Nodes can join or leave without disrupting the network

8. Disadvantages of P2P Networks P2P networks pose risks. They have security vulnerabilities. They can facilitate illegal file sharing. It's difficult to enforce policies. 1 Security risks 2 Copyright issues 3 Lack of central control

9. P2P vs. Client-Server: Part 1 P2P Each device (peer) acts as both client and server. P2P is decentralized, client-server is centralized Clients request services from a centralized server. P2P has minimal server dependence, client-server is heavily dependent Data is distributed across peers. Data is stored on a central server. Client-Server

10. P2P vs. Client-Server: Part 2 Highly scalable as new peers join. More secure, controlled by the central server. Client-server can be expensive Client-server offers more control Limited by server capacity. Less secure, as every peer can access data. P2P Client-Server