S-72.1120 Data Communications and
Protocols
Study questions
Case 1 : Transmission Errors
What is the main purpose of the transport layer (TCP)?
What is its relationship to the network layer (IP etc.)?
What is its relationship to the application layer (WWW, e-mail, file
transfer...)?
How is a transmission error noticed in TCP?
What is done if there is a transmission error?
How is TCP used by a programmer of, say, a business-related application
program?