118 - 238 CCNA 2: Routers and Routing Basics v3.1 Instructor Guide – Module 10
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2004, Cisco Systems, Inc.
Module 10 Summary
Before students begin Module 11, they must be able to compare and contrast the roles of
MAC addresses, IP addresses, and port numbers.
Online assessment options include the end-of-module online quiz in the curriculum and the
online Module 10 exam.
Students should understand the following main points:
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TCP operation description
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Synchronization process or three-way handshake
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Denial-of-service attacks
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Windowing and window size
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Sequencing numbers
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Positive acknowledgement and retransmission (PAR)
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UDP operation
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Multiple conversations between hosts
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Ports for services
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Ports for clients
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Port numbering and well-known ports
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Example of multiple sessions between hosts
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Comparison of MAC addresses, IP addresses, and port numbers
