In this episode, we explore the foundational concepts of building scalable web applications. We start with the basics, examining a simple web application model where a single server handles all requests. As user demand grows, this model reveals its limitations, and we dive into the two main approaches to scaling: vertical scaling, which involves upgrading server hardware, and horizontal scaling, which distributes the load across multiple servers.

We highlight the benefits of horizontal scaling through a distributed system architecture, breaking down essential components like storage, caching, and task queues. We also discuss the efficiency gains and improved scalability offered by this method, as well as the importance of mapping out use cases to clarify your design in an interview setting. Tune in for a detailed guide to building scalable, efficient web applications that can handle the demands of growth!