Ver_4_CCNA1_Module_3_study_guides

Ver_4_CCNA1_Module_3_study_guides - SEMESTER 1 Chapter 3...

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SEMESTER 1 Chapter 3 Application Layer Functionality and Protocols V 4.0 3.1.1. 1 What does the application layer provide? the interface between the applications we use to communicate and the underlying network over which our messages are transmitted. Application layer protocols are used to exchange data between programs running on the source and destination hosts. What are application layer protocols used for? to exchange data between programs running on the source and destination hosts. 3.1.1. 2 What are the three primary functions of the Presentation Layer? Coding and conversion of Application layer data to ensure that data from the source device can be interpreted by the appropriate application on the destination device. Compression of the data in a manner that can be decompressed by the destination device. Encryption of the data for transmission and the decryption of data upon receipt by the destination. What is the main function of the session layer? The Session layer handles the exchange of information to initiate dialogs, keep them active, and to restart sessions that are disrupted or idle for a long period of time. 3.1.1. 3 What do the Application Layer protocols of the TCP/IP protocol specify? the format and control information necessary for many of the common Internet communication functions. 3.1.2 What are the two forms of software programs or process that provide network access in the Application Layer applications and services. 3.1.3 What do protocols provide? the rules and formats that govern how data is treated. What is the difference between an application and a service? While applications provide people with a way to create messages and Application layer services establish an interface to the network, What do application layer protocols do?
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