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Review the most important topics from inside the chapter, noted with the Key Topic icon in the outer margin of the page. Table 3-4 lists these key topics and the page numbers where each is found.
| Key Topic Element | Description | Page Number |
|---|---|---|
| List, Figure 3-2 | Common coaxial connectors | 61 |
| List | Categories of UTP cabling | 64 |
| List, Figure 3-5 | Common twisted-pair connectors | 65–66 |
| Figure 3-7 | Light propagation in multimode fiber | 68 |
| Figure 3-8 | Light propagation in single-mode fiber | 69 |
| List, Figure 3-9 | Common fiber-optic connectors | 69–70 |
| Figure 3-10 | Example: Cable distribution system | 71 |
| List | Three types of Ethernet hubs | 74 |
| Figure 3-14 | Ethernet hub | 75 |
| Figure 3-15 | Ethernet bridge | 76 |
| Figure 3-26 | Layer 2 Ethernet switch | 83 |
| Figure 3-27 | Multilayer Ethernet switch | 84 |
| Figure 3-28 | Router | 85 |
| Table 3-1 | Network infrastructure device characteristics | 85 |
| Figure 3-29 | VPN concentrator | 86 |
| Figure 3-30 | Firewall | 87 |
| Figure 3-31 | DNS server | 88 |
| Figure 3-32 | Hierarchical domain name structure | 89 |
| Table 3-2 | Common DNS record types | 89 |
| Step list | Obtaining IP address information from a DHCP server | 91 |
| Figure 3-34 | Proxy server operation | 92 |
| Figure 3-35 | Content engine operation | 94 |
| Figure 3-36 | Content switching operation | 94 |
| Figure 3-37 | Virtual server | 96 |
| Figure 3-38 | Virtual server with a virtual switch | 97 |
| Figure 3-39 | Virtual desktop topology | 98 |
| Figure 3-40 | Sample VoIP network topology | 99 |
| Table 3-3 | VoIP network elements | 100 |