Does it matter that TCPIP doesnt have protocols that map to

Does it matter that TCP/IP doesn’t have protocols that map to all seven layers of the OSI model? Why or why not?

Solution

Before answering to your question, let’s see the layers of the OSI Model and the corresponding TCP/IP model:

Application Layer
Application Layer Presentation Layer
Session Layer
Transport Layer                                Transport Layer
Network Layer                                  Network Layer
Data link Layer                                  Data Link Layer
Physical Layer                                    Physical Layer

TCP/IP Model                                      OSI Model

Now , TCP/IP was developed in the 1970s, while OSI model was created in the 1980s. Hence the TCP/IP model doesn’t map cleanly/clearly to the OSI model. TCP/IP, it was actually designed to solve a specific set of problems, but not to function as a general description for all network communication.
So it doesn’t really matter, that TCP/IP doesn’t have protocols that map to all seven layers of the OSI model. Unlike OSI model, the layers of the TCP/IP protocol suite contain relatively independent protocols that can be matched depending the needs of the system. The Application layer in TCP/IP roughly performs all the duties of the Application, Presentation, Session Layer of the OSI model.