COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

WIRED LANS ETHERNET PROTOCOL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Users are complaining that sometimes network communications are slow. 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?
A
Add a UPS system
B
Install shielded cables near the elevator
C
Add a dedicated A/C unit to the switch closet
D
Install a dedicated power circuit for the switch
Explanation: 

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.

There is 1 question to complete.