单选题
A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）
Move the power supply voltage switch to 220 volts.
Add an additional fan to help cool the computer.
Replace the cable that attaches the power supply to the motherboard.
Replace the power supply.
单选题
Which of the following is used to produce the best LCD image on a laptop？（）
Dual scan
Active matrix
Passive matrix
Active scanning
单选题
A work order states that a customer used Windows updates and after rebooting the computer， the video driver was corrupted and the computer was in safe mode. Which of the following would be the BEST action to take？（）
Download and install the correct video driver from the manufacturer’s web site.
Remove the video driver and reboot the computer.
Use the Driver Roll Back feature in Device Manager.
Go back to Windows update and specify the correct video driver.
单选题
Which of the following desktop hardware should a technician be MOST concerned with disposing of correctly？（）
batteries
power cords
disk drives
hard drives
单选题
A technician receives a work order requesting the installation of an NLX motherboard into a micro ATX case. Which of the following should the technician recognize？（）
A standard ATX power supply will not be able to connect to the NLX adapter.
The system will not start up.
The case is too small for the motherboard.
The motherboard was not meant for this style of case.
单选题
A technician receives a new printer for repair and the work order states that when powered on the printer makes a loud noise and will not print. Which of the following actions should the technician take？ （）
Install new drivers on the computer.
Install a new ink cartridge.
Install a print head on the printer.
Remove the packing tape from the print head.
多选题
Which of the following is the voltage that an ATX molex connector delivers to an IDE device？ （）
-3.3 Volts
24 Volts
120 Volts
12 Volts
5 Volts
单选题
Which of the following would be an example of a biometric device？（）
USB security key
smart card reader
thumb print reader
encryption password
单选题
A printer takes a long time to print high-end graphics. Which of the following would be the FIRST action to take？（）
Recommend the use of smaller graphics.
Replace the toner cartridge.
Recommend connecting fewer users to the printer.
Check the amount of memory installed.
单选题
Which of the following would be the safest environmental condition for working on multiple systems at one time？（）
A tiled room with anti-static mats and wrist straps.
A clean， carpeted room with anti-static mats and wrist straps.
A tiled room in a warehouse with outside ventilation.
A clean， carpeted room with air purifiers and dehumidifiers.
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