In the OSI reference model, which layers are considered host-to-host /…
2015
In the OSI reference model, which layers are considered host-to-host / end-to-end layers?
Answer: A. Transport, session, presentation, application — Correct answer: Transport, Session, Presentation, and Application. Lower three layers: Physical, Data Link, and Network mainly provide hop-to-hop transmission…
- A.
Transport, session, presentation, application
- B.
Session, presentation, application
- C.
Datalink, transport, presentation, application
- D.
Physical, datalink, network, transport
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Correct answer: A
Correct answer: Transport, Session, Presentation, and Application.
Lower three layers: Physical, Data Link, and Network mainly provide hop-to-hop transmission and routing support.
Upper four layers: Transport, Session, Presentation, and Application provide end-to-end communication services between hosts/applications.
Therefore, the host-to-host layers are Layers 4 to 7: Transport, Session, Presentation, and Application.
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