Layer 7 (Application)

Layer 7, often referred to as the Application Layer in networking, is where communication occurs between software applications over a network. It enables users to exchange information through protocols that govern how applications interact, such as HTTP for web browsing or SMTP for email. Essentially, Layer 7 is the top-most layer in the OSI model, responsible for ensuring that data is presented in a way that applications can understand. It focuses on user interactions and application-specific functions, making it crucial for delivering services like websites, emails, and file transfers effectively and securely.