When a web server sends an HTTP response, at which specific layer of the OSI model is the destination MAC address added to the data unit before it is placed onto the physical medium?

The destination MAC address is added to the data unit at the Data Link Layer (Layer 2) of the OSI model. The OSI model, or Open Systems Interconnection model, is a conceptual framework that standardizes the functions of a telecommunication or computing system in terms of abstraction layers. Each layer performs a specific set of functions and relies on the services of the layer below it. When a web server sends an HTTP response, the data goes through a process of encapsulation as it moves down the OSI model. The HTTP response, which is application data, is passed down from the Application Layer (Layer 7). The Transpo....