A network technician is troubleshooting an issue routing TCP packets to an email server. At which of the following OSI layers is the issue occurring?
A. Layer 1 -Physical
B. Layer 3 -Network
C. Layer 4 -Transport
D. Layer 7 -Application
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keyword: TCP = Transport Layer (4)
I just had this on a test in class. The answer was Network Layer 3. It was explained to me that the issue being troubleshooting is with the routing. I know. I’ve seen it as Transport on at least 3 different websites.