CCNA

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1

Version 4.0

Application Layer

Functionality and

Protocols

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Objectives</b>



_{Define the application layer as the source and}

destination of data for communication across

networks.



_{Explain the role of protocols in supporting}

communication between server and client

processes.



_{Describe the features, operation, and use of}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Applications – </b>

<b>The Interface Between Human and Data Networks </b>

 _{Explain the role of applications, services and protocols in}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Applications – </b>

<b>The Interface Between Human and Data Networks </b>

 _{Define the separate roles applications, services and protocols play}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Applications – </b>

<b>The Interface Between Human and Data Networks </b>

 _{Explain that applications provide the means for generating and}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>The Role of Protocols in Supporting Communication</b>

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Applications – </b>

<b>The Interface Between Human and Data Networks </b>

 _{Describe the role protocols play in networking and be able to}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>The Role of Protocols in Supporting Communication</b>

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>The Role of Protocols in Supporting Communication</b>

 _{Compare and contrast client server networking with peer-to-peer}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the DNS protocol and how this protocol}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the HTTP protocol and how this protocol}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the POP and SMTP protocols, and how}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the Telnet protocol and identify several of}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the SMB protocol and the role it plays in}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

<b>Features, Operation, and Use of TCP/IP </b>

<b>Application Layer Services</b>

 _{Describe the features of the Gnutella protocol and the role it plays}

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

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