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Page 1: Basic concepts

Basic Concepts

• Line Configuration• Topology• Transmission Mode• Categories of Networks• Internetworks

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Figure 2-1

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Figure 2-2

Point-to-Point Line Configuration

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Figure 2-2-continued

Point-to-Point Line Configuration

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Figure 2-2-continued

Point-to-Point Line Configuration

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Figure 2-3

Multipoint Line Configuration

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Figure 2-4

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Figure 2-5

Mesh Topology

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Figure 2-6

Star Topology

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Figure 2-7

Tree Topology

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Figure 2-8

Bus Topology

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Figure 2-9

Ring Topology

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Figure 2-10

Hybrid Topology

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Figure 2-11

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Figure 2-12

Simplex

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Figure 2-13

Half-Duplex

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Figure 2-14

Full-Duplex

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Figure 2-15

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Figure 2-16Local Area Network

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Figure 2-16-continuedLocal Area Network

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Figure 2-17Metropolitan Area Network

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Figure 2-18 Wide Area Network

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Figure 2-19Internetwork

(Internet)

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OSI Model

• The model• Functions of the layers

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Figure 3-1

OSI Model

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Figure 3-2 OSI Layers

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Figure 3-3 An Exchange Using the OSI Model

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Figure 3-4

Physical Layer

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Figure 3-5

Data Link Layer

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Figure 3-6

Data Link Layer Example

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Figure 3-7

Network Layer