CompTIA Network+

Answer: A, D and E - The Application, Presentation, and Session layers of the OSI model correspond to the Application layer of the TCP/IP Model.

Key Takeaway: The OSI model’s top three layers, the Application, Presentation and Session layers make up what is considered the “Application Support Block” of the OSI model. The TCP/IP Model is comprised of 4 layers and each of the 7 layers of the OSI model corresponds to one of them. Specifically, the “Application Support Block” corresponds to the Application layer of the TCP/IP model. The Transport layer of the OSI corresponds to the Transport layer of the TCP/IP model. The Network layer of the OSI model corresponds to the Internet layer of the TCP/IP model and finally both the Data Link and the Physical layers correspond to the Network Interface layer of the TCP/IP model.