Conclusion

1. Requirements of Zoom System Design

1.1 Functional Requirements of Zoom System Design...

2. Capacity Estimation

Let’s assume we have 1 billion users. Assuming 1 billion users with 100 million group video calls daily, the Zoom App needs to handle approximately 58,000 requests per second to provide a scalable backend....

3. High-Level Design of Zoom System Design

At the heart of Zoom’s success is its robust infrastructure, which includes key features like Zoom clients, distributed data centers, web infrastructure, and new technologies like HTTP tunnels Let’s explore how each feature has contributed to Zoom’s impressive growth and we have overcome the challenges....

4. Low-Level Design of Zoom System Design

Let us now discuss about the low-level design of zoom system design...

5. Microservices used in Zoom System Design

Zoom’s structure has user management service, meeting scheduler service, video streaming services, chat services, record management services, notification services and so on. Some of them are mentioned below:...

6. API Design of Zoom System Design

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7. Database Design of Zoom System Design

Zoom’s database design is about user management and recording functionalities. A user table that should store necessary user information, while a separate recording table manages recorded sessions and required information. Permissions are set to record access tables to facilitate user access to recordings....

8. How does Zoom handle Scalability?

Zoom’s architecture distributes meetings across its data center network, allowing users to join meetings via the closest data center, ensuring scalability and a reliable video experience for large gatherings. Unlike legacy systems that rely on resource-intensive Multipoint Control Units (MCUs), Zoom’s multimedia routing delivers multiple video streams directly to clients, reducing computing requirements and enabling scalability for meetings with thousands of participants. Each video stream in Zoom can adjust to multiple resolutions, eliminating the need for separate encoding and decoding processes for each endpoint. This optimization enhances performance and scalability while providing varying levels of video quality based on device capabilities and network conditions. Zoom’s quality-of-service application layer optimizes video, audio, and screen-sharing experiences based on each device’s capabilities and available bandwidth. This proactive approach ensures the best possible user experience across diverse network conditions. With support for distributed architecture and multimedia routing, Zoom can accommodate meetings with thousands of participants, ensuring seamless video and audio communication for large-scale events....

9. Conclusion

Zoom’s design encompasses numerous components and strategies to ensure seamless, reliable, and scalable video communication services for its extensive user base. Its key focus on efficiency, fault tolerance, and adaptability positions Zoom as a leading platform in modern video conferencing, providing an outstanding communication experience....