At Layer 4 of the Open Systems Interconnection (OSI) model, what identifies the application that will handle a packet inside a host?
At Layer 4 of the Open Systems Interconnection (OSI) model, what identifies the application that will handle a packet inside a host?
Layer 4 of the OSI model, also known as the Transport Layer, deals with end-to-end communication and reliability. In the context of the Transport Layer, a TCP/UDP port number identifies the application that will handle the packet within a host. Each application or service is assigned a specific port number, which allows the Transport Layer to route the data to the correct application.
Answer C