2.4.7 Practice Questions PC Maintenance

Your company provides testing services that help customers identify and resolve performance issues with their software and e-commerces sites before they go live. To perform accurate testing, a large number of computers are required, sometimes numbering in the hundreds. Recently, you have noticed that the lights in the testing lab seem dimmer than normal and sometimes flicker. Which of the following electrical terms best describes the condition you are most likely experiencing?

Brownout

Which of the following device types should be plugged into a surge-protected-only outlet on a UPS unit, and not a battery backup outlet?

Laser printer

A new laptop was delivered to your home and left on the porch while you were at work. It is very cold outside, and you don't know how long it has been there. You unpack the computer and would like to know if it is working properly. Which of the following is the best action to take?

Let the computer warm up to room temperature before turning it on.

Which of the following are common tools used to physically clean the inside of a computer? (select two)

Natural bristle brush Compressed air.

Which of the following features should you look for when selecting a vacuum cleaner for your cleaning kit? (select two)

Non-static generating. A vacuum cleaner that bows as well as vacuums.

Besides protecting a computer from under-voltages, a typical UPS also performs which other actions? (select two)

Protects from over-voltages. Conditions the power signal.

Which of the following devices help protect against temporary, above-normal voltages?

Surge protector

What does occasional beeping from the UPS mean?

The computer is running on the UPS battery power

Your company resides in an area with rapid growth in both corporate and residential areas surrounding your office... Which of the following would be the best device to recommend to your manager for computer protection

UPS

You are trying to help a co-worker order a UPS for each PC in her remote office location. What rating is used to specify the size of a UPS?

VA

Which of the following is most helpful in keeping a computer cool?

Verify that cooling fans are not circulating air in the wrong directions. Vacuum dust from the system regularly.

Which of the following statements about cleaning monitors and display devices is true?

You should clean the monitor while it is powered off with a lint-free cloth.