OSI vs IP Suite
The OSI (Open Systems Interconnection) model is a conceptual model used for reference mostly.
The application layer is the only layer that directly interacts with data from the user.
client software applications are not part of the application layer
the OSI model is comprehensive reference framework for general networking systems, it’s important to mention that the modern Internet doesn’t strictly follow the OSI model
The modern Internet more closely follows the simpler Internet protocol suite, which is commonly known as TCP/IP because the foundational protocols in the suite are the TCP (Transmission Control Protocol) and the IP (Internet Protocol)
An HTTP/2 connection is an application-layer protocol running on top of a TCP connection. The client is the TCP connection initiator.
How OSI relates to IP suite
