Question

Which of the following statement is incorrect?
A.The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network.
B.The second layer of communication is the data-link layer
C.Errors in the physical layer can be detected by the data link layer
D.The fourth layer, in reference to the OSI model, is the session layer

Answer 1

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[B] $\bf {\underline{Answer}}$

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Answer 2

Hey mate,☺☺☺

Here is your answer...✨✨✨

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QUESTION:

Which of the following statement is incorrect?
A.The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network.
B.The second layer of communication is the data-link layer
C.Errors in the physical layer can be detected by the data link layer
D.The fourth layer, in reference to the OSI model, is the session layer

ANSWER:

Option 【B】. The second layer of communication is the data-link layer

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Hope this will help you...✨✨✨

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