N10-005 · Question #366
The application layer in the TCP/IP model is comparable to which of the following layers in the OSI model?
The correct answer is D. Layer 7. The TCP/IP model has four layers: Network Access, Internet, Transport, and Application. Its Application layer is a collapsed representation of the top three OSI layers: Session (Layer 5), Presentation (Layer 6), and Application (Layer 7). When asked which single OSI layer it is…
Question
The application layer in the TCP/IP model is comparable to which of the following layers in the OSI model?
Options
- ALayer 2
- BLayer 5
- CLayer 6
- DLayer 7
How the community answered
(29 responses)- A3% (1)
- B3% (1)
- D93% (27)
Explanation
The TCP/IP model has four layers: Network Access, Internet, Transport, and Application. Its Application layer is a collapsed representation of the top three OSI layers: Session (Layer 5), Presentation (Layer 6), and Application (Layer 7). When asked which single OSI layer it is most comparable to, the answer is Layer 7 - the Application layer - because both layers share the same name and both handle end-user application protocols such as HTTP, FTP, DNS, and SMTP. The other choices (Layer 2 = Data Link, Layer 5 = Session, Layer 6 = Presentation) do not align with the TCP/IP Application layer's primary function.
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