A user complains that his notebook display has started to go dim intermittently. You suspect the backlight might
need to be replaced, but you want verify that the backlight is failing before you replace it.

Which of the following would be BEST to check before replacing the backlight?

Check the display inverter connections.

Make sure that the dimming isn't being caused by a power saving method that has been configured to
conserve notebook power.

Make sure the battery is still able to hold a charge.

Make sure the power adapter cords are plugged in securely.

Check for cracks in the power bundles that go from the laptop to the display.

One of your customers wants you to build a personal server that he can use in his home. one of his concerns is making sure he has at least one backup of their data stored on the server in the event that a disk fails. you have decided to back up his data using raid. since this server is for personal use only, the customer wants to keep costs down. therefore, he would like to keep the number of drives to a minimum. which of the following raid systems would best meet the customer's specifications? a. raid 0 b. raid 1 c. raid 5 d. raid 10

In which part of a professional email should you try to be brief, but highly descriptive?

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).