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Home > Archive > 70-216 > August 2002 > QOD confusing: Question 70216qod6
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QOD confusing: Question 70216qod6
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| mcdoud 2002-08-27, 11:15 am |
| I believe there is a problem with today's QOD. It reads as follows:
Concerning the OSI model, what functions does the session layer perform?
A) The session layer allows applications running on different computers to make multiple connections as required, none of which are required to be common to any other connection. The session layer also provides
B) The session layer allows applications running on different computers to share a common connection. The session layer also provides for data synchronization and check pointing, so in the event a session fails, only the data transmitted after that point will require retransmission.
C) The session layer translates data between the format that the computer uses and the format that the computer generates. The session layer also performs compression and encryption.
D) The session layer provides services to applications running on the computer to enable communications between applications on sources and destination computers.
Correct answer: B
Explanation:
From the Windows 2000 Server Administrators Companion (Appendix C), the transport layer is the layer responsible for ensuring that all packets are sent out error-free. The transport layer breaks up larger pieces of data into smaller pieces and assigns each one a sequence number, which ensure that no packet loss or packet duplication occurs during the transmission.
The explanation is talking about the TRANSPORT layer while the question is talking about the SESSION layer. I believe the correct answer should be D. | |
| jeff_j_black 2002-08-27, 12:24 pm |
| I think your thinking is correct. Transport manages multiple conversations and error detection, error recovery etc.
Seems like 'D' would be more correct, if you were talking about 'session'? |
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