Chapter 15
Application Layer
Objectives
Upon completion of this chapter, you will be able to answer the following questions:
How do the functions of the application layer, presentation layer, and session layer work together to provide network services to end-user applications?
How do end-user applications operate in a peer-to-peer network?
How do web and email protocols operate?
How do DNS and DHCP operate?
How do file transfer protocols operate?
Key Terms
This chapter uses the following key terms. You can find the definitions in the glossary at the end of the book.
Bootstrap Protocol (BOOTP) page 510
Simple Mail Transfer Protocol (SMTP) page 510
Post Office Protocol (POP3) page 510
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