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ISRO | ISRO CS 2015 | Question 57

  • Last Updated : 05 Apr, 2018

Which layers of the OSI reference model are host-to-host layers?
(A) Transport, session, presentation, application
(B) Session, presentation, application
(C) Datalink, transport, presentation, application
(D) Physical, datalink, network, transport

Answer: (A)

Explanation: In OSI Model, Physical; Datalink and Network layer are hop-to-hop layers whereas Transport, Session, Presentation and Application layer are end-to-end or host-to-host layers.
So, option (A) is correct.

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