The document contains figures and captions describing the network, transport, session, presentation and application layers of the OSI model. It includes examples of how each layer functions and provides a summary of the functions of each layer.

1. Figure 3-8
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Network Layer Example

2. Figure 3-8-continued
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Network Layer Example

3. Figure 3-9
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Transport Layer

4. Figure 3-10
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Transport Layer
Example

5. Figure 3-10-continued
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Transport Layer Example

6. Figure 3-11
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Session Layer

7. Figure 3-12
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Presentation Layer

8. Figure 3-13
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Application Layer

9. Figure 3-14
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Summary of Layer Functions

10. Figure 3-14
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Summary of Layer Functions