Discussion :: Computer Networking
- Which of the following statement is incorrect?
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A.
The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network. |
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B.
The second layer of communication is the data-link layer |
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C.
Errors in the physical layer can be detected by the data link layer |
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D.
The fourth layer, in reference to the OSI model, is the session layer |
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E.
None of the above |
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Answer : Option D
Explanation :
Explanation Not Provided
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