Exploration Network Chapter4 min

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OSI Transport Layer

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

<b>Objectives</b>

 Explain the role of Transport Layer protocols and
services in supporting communications across data
networks

 Analyze the application and operation of TCP
mechanisms that support reliability

 Analyze the application and operation of TCP

mechanisms that support reassembly and manage
data loss.

 Analyze the operation of UDP to support

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<b>Transport Layer Role and Services</b>

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<b>Transport Layer Role and Services</b>

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<b>Transport Layer Role and Services</b>

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<b>Transport Layer Role and Services</b>

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<b>Transport Layer Role and Services</b>

 Identify how a port number is represented and describe
the role port numbers play in the TCP and UDP

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<b>Transport Layer Role and Services</b>

 Describe the role of segments in the transport layer and
the two principle ways segments can be marked for

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<b>Application and Operation of TCP Mechanisms</b>

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<b>Application and Operation of TCP Mechanisms</b>

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<b>Application and Operation of TCP Mechanisms</b>

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<b>Application and Operation of TCP Mechanisms</b>

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<b>Managing TCP Sessions</b>

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<b>Managing TCP Sessions</b>

 Trace the steps used by the TCP protocol in which

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<b>Managing TCP Sessions</b>

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<b>Managing TCP Sessions</b>

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<b>UDP Protocol</b>

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<b>UDP Protocol</b>

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<b>UDP Protocol</b>

 Describe how servers use port numbers to identify a

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<b>UDP Protocol</b>

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