Which of the following provide correct information about a
protocol at the transport layer of the OSI model?
A.) UDP - Provides Connectionless datagrams service
B.) TCP - Provides Connection Oriented Services
C.) SMTP - Provides Mail Exchange
D.) IP - Route determination
E.) TCP - Provides Flow Control and Error Checking
F.) FTP - Transfers of Files
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Answer: A B E
Only TCP and UDP work at the Transport layer of the above
choices. IP is
a Network layer protocol. SMTP and FTP are application layer
protocols.
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CCNA 
