Application Layer Functionality and Protocols

10/11/07 10:11 AM Page 63. CHAPTER 3. Application Layer Functionality and Protocols Objectives Upon completion of this chapter, you will be able to answer the following questions: How do the functions of the three upper OSI What are the file-sharing processes that use model layers provide network services to peer-to-peer applications and the Gnutella end-user applications ? protocol? How do the TCP/IP Application Layer Protocols How do Protocols ensure that services running provide the services specified by the upper on one kind of device can send to and receive layers of the OSI model?

66 Network Fundamentals, CCNA Exploration Companion Guide Application OSI Model OSI Model 7 Application 7 Presentation People create the communication. 1 The application layer prepares human communication for transmission over the data network. 2 Software and hardware convert communication to a digital format. 3 Application layer services ...

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  Applications, Ccna, Exploration, Fundamentals, Early, Ccna exploration, Application layer

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