A+ Introduction to Computers Quiz

Which of the following can protect against ESD damage? (Choose all that apply.) A. ESD wrist strap B. Reducing humidity as much as possible C. Ensuring that computers are stored on carpets whenever possible D. ESD mat

A and D (ESD wrist strap / ESD mat)

A system is no longer booting to the SATA hard drive, and you suspect that the ATX-based power supply might not be providing the correct voltages. What voltages should you see on the SATA power connector? A. 3.3 VDC, 5 VDC, and 12 VDC B. 3.3 VDC, 12 VDC, and 15 VDC C. 5 VDC, 12 VDC, and 15 VDC D. 12 VDC, 15 VDC, and 24 VDC

A. 3.3 VDC, 5 VDC, and 12 VDC

A power supply failed after a technician added some hard drives to a desktop computer. You need to purchase an additional power supply. What is a likely power rating you'll purchase to ensure that the power supply doesn't fail again? A. 600 W B. 600 V C. 300 W D. 250 V

A. 600 W

After cleaning a computer screen with a cleaning compound, your fingers start to develop a rash. What can you use to quickly identify what was in the cleaning compound? A. MSDS B. Internet C. Local hospital D. Coworkers

A. MSDS

Molex connectors provide power to disk drives from ATX-rated power supplies. What voltages are supplied through the Molex connector? A. 3.3 V and 5 V B. 5 V and 12 V C. 5 V and 15 V D. 12 V and 15 V

B. 5 V and 12 V

Which of the following can contribute to ESD damage? A. Case fans B. Carpet C. Touching the computer case while working on a computer D. ESD mats

B. Carpet

You want to verify that a power supply is providing proper voltages while it's connected to the P1 connector on the motherboard. What would you use? A. Surge suppressor B. Multimeter C. Power strip D. Power supply tester

B. Multimeter

Which of the following voltages are not provided by ATX-based power supplies? (Choose two.) A. 12 VDC B. -12 VDC C. 115 VAC D. 15 VDC

C and D (115 VAC /15 VDC)

Which of the following can you use to protect against power sags? A. Commercial power B. Power supply C. UPS D. MSDS

C. UPS

A computer is making a lot of noise. Of the following choices, what is the likely problem? A. Faulty motherboard B. USB flash drive C. Power supply set to wrong voltage D. Case fan

D. Case fan

You open a computer to troubleshoot it and notice an excessive amount of dust inside it. Of the following choices, what is the best choice to clean it? A. Lint-free cloth B. Vacuum cleaner C. Glass cleaner D. Compressed air

D. Compressed air

Another technician ordered a fan for a computer case. It has arrived, and you need to install it. The original fan has been removed. Where should you connect the fan power connection? A. AC outlet B. P1 power supply connector C. Front panel power D. Motherboard

D. Motherboard