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?