ICND1: Interconnecting Cisco Networking Devices Part 1 (CCENT, legacy) — Question 31

Which three encapsulation layers in the OSI model are combined into the TCP/IP application layer? (Choose three)

Answer options

• A. Session
• B. transport
• C. presentation
• D. application
• E. data-link
• F. network ACD

Correct answer:

Explanation

The correct answers are A, C, and D. The TCP/IP application layer integrates the functions of the OSI model's session, presentation, and application layers. Options B (transport), E (data-link), and F (network ACD) represent different layers that do not combine into the TCP/IP application layer.