DATA LINK LAYER WIRED NETWORKS
WIRED LANS ETHERNET PROTOCOL
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Add a UPS system
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Install shielded cables near the elevator
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Add a dedicated A/C unit to the switch closet
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Install a dedicated power circuit for the switch
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Detailed explanation-1: -You use a protocol analyzer and find that packets are being corrupted as they pass through a switch. You also notice that this only seems to happen when the elevator is running. What should you do? Install shielded cables near the elevator.
Detailed explanation-2: -The switches do not support auto-MDI. Which type of cable should you use? Use a crossover cable to connect two switches through their uplink ports or to connect two switches through regular ports.
Detailed explanation-3: -Three standards are defined by 802.3u: 100BaseTX, 100BaseT4, and 100BaseFX. Of the three, the FX standard uses fiber-optic cable. For more information on the 802.3u standards, see the section “Fast Ethernet” in this chapter.
Detailed explanation-4: -A router is a device that connects two or more packet-switched networks or subnetworks. It serves two primary functions: managing traffic between these networks by forwarding data packets to their intended IP addresses, and allowing multiple devices to use the same Internet connection.