Ce sont les vraies questions de revision du livre. Reponds d'abord avec ce que tu as retenu de la lecture, puis valide pour voir la correction et la reference exacte dans le PDF.
Q1. What would happen if you removed the battery from a motherboard by accident?
Q2. List three tasks commonly performed during preventive maintenance.
Q3. Computers used in a grocery store warehouse for inventory control have a higher part failure rate than do the other company computers. Which of the following is most likely to help in this situation?
Q4. Which of the following can prolong the life of a computer and conserve energy? (Choose all that apply.)
Q5. Which power component has a 24-pin connector?
Q6. A mechanical hard drive randomly becomes unavailable, and after replacing the drive, the technician suspects that the drive may not be getting 5 volts consistently. What could help in this situation?
Q7. When disassembling a computer, which tool will help you remove the memory module?
Q8. A user had a motherboard problem last week, and a technician fixed it. Now the same computer has a different problem. The user reports that the USB ports on the front do not work anymore. What is the first thing you should check?
Q9. Which of the following items would be specialized for use with a laser printer?
Q10. Which two of the following would most likely cause an unusual noise on a desktop computer? (Choose two.)
Q11. A computer will not power on. Which of the following would be used to check the wall outlet?
Q12. A computer will not power on. After checking the wall outlet and swapping the power cord, what would the technician use next?
Q13. Which of the following is affected by the power supply wattage rating?
Q14. Which of the following would help with computer heat?
Q15. Power supply disassembly is a common requirement of a PC technician.
Q16. Rewrite the following email to illustrate good written communication skills: "We have little time to get the PMS done on the PCs and N/W gear. What software do you want?"
Q17. List three recommendations for good technical written communication.
Q18. A computer is doing weird things, such as shutting down unexpectedly and hanging. You suspect a power problem. You check the power good (power OK) signal on the power supply's main motherboard connector. The voltage reading shows that you have power (+2.5 volts). What are you going to do next?
Q19. What is the purpose of the I/O shield?
Q20. Which two items would help a technician maintain personal safety while working on PCs and printers in an extremely dusty warehouse? (Choose two.)