N10-005 · Question #598
The Transport Layer of the TCP/IP model corresponds to which of the following layers of the OSI model?
The correct answer is C. 4. The Transport layer in the TCP/IP model maps directly to Layer 4 (Transport) in the OSI model. Both layers handle end-to-end communication using protocols like TCP and UDP.
Question
The Transport Layer of the TCP/IP model corresponds to which of the following layers of the OSI model?
Options
- A1
- B3
- C4
- D5
How the community answered
(32 responses)- A3% (1)
- B3% (1)
- C94% (30)
Why each option
The Transport layer in the TCP/IP model maps directly to Layer 4 (Transport) in the OSI model. Both layers handle end-to-end communication using protocols like TCP and UDP.
OSI Layer 1 is the Physical layer, which corresponds to the Network Access (Link) layer in TCP/IP, not the Transport layer.
OSI Layer 3 is the Network layer, which corresponds to the Internet layer in TCP/IP, handling logical IP addressing and routing.
OSI Layer 4 is the Transport layer, which corresponds directly to the Transport layer in the TCP/IP model. Both layers are responsible for end-to-end data delivery, flow control, and error checking using TCP and UDP.
OSI Layer 5 is the Session layer, which has no direct equivalent in the TCP/IP model and is generally absorbed into the Application layer.
Concept tested: TCP/IP to OSI model layer mapping
Source: https://docs.cisco.com/en/US/docs/internetworking/technology/html/OSI-TCP.html
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