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DATA COMMUNICATION Lecture-10
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Recap Of Lecture-9 Functions of Layers Transport Layer Session Layer
Presentation Layer
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Presentation Layer
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Functions of Presentation Layer
Translation Encryption Compression
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Application Layer Enables the user either human or software to access the network It provides user interface and support for the services such as Electronic mail Remote File access and Transfer Shared Database Management
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Application Layer
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Application Layer Functions
Network Virtual Terminal File Transfer, Access & Management (FTAM) Mail Services Directory Services
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Summary of Layer Functions
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TCP/IP Protocol Suite Transmission Control Protocol / Internetworking Protocol Developed Prior to OSI Model Widely used in the Internet Today
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Layers in TCP/IP Protocol Suite
Physical Data Link Network Transport Application
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TCP/IP Protocol Suite
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Summary Function Of Layers TCP/IP Suit
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Suggested Reading Section3.2 ,3.3“Data Communications and Networking” 2nd Edition by Behrouz A. Forouzan
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Recap of the OSI Model
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