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单选题
A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）
A
Cable tester
B
Power supply tester
C
Tone generator
D
Multimeter
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单选题In the expression an, n is an even power. Which of the following expressions does not have even power?A
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考题
单选题A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）A
Cable testerB
Power supply testerC
Tone generatorD
Multimeter
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单选题A technician has had several support requests for one PC. The technician has reseated the PCIcards and replaced the hard drive in the PC located in a school cafeteria kitchen. PCs located in the business office or the classrooms have not had this issue. Which of the following is MOST likely causing this PC’s issue?（）A
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单选题A customer requires a shock resistant mass storage device in their PC. Which of the following drives should the technician install?（）A
Hard diskB
Solid stateC
FloppyD
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单选题After making a long CAT5 cable, the technician fears that the cable may have been damagedduring the pull, but does not have a cable tester. Which of the following would be the BESTalternative tool to determine whether there are any breaks or shorts in the cable?（）A
MultimeterB
VoltmeterC
Loopback plugD
Toner probe
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单选题A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）A
Backup power generatorB
Uninterruptable power supplyC
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Surge protectors
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