Hour 6. The Transport Layer
What You’ll Learn in This Hour:
The Transport layer provides an interface for network applications and offers optional error checking, flow control, and verification for network transmissions. This hour describes some important Transport layer concepts and introduces the TCP and UDP protocols.
At the completion of this hour, you will be able to
Describe the basic duties of the Transport layer
Explain the difference between a connection-oriented protocol and a connectionless protocol
Explain how Transport layer protocols provide an interface to network applications through ports and sockets
Describe the differences between TCP and UDP
Identify the fields that make up the TCP header
Describe how TCP opens and closes a connection
Describe how TCP sequences and acknowledges data transmissions
Identify the four fields that comprise the UDP header