A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）A、MultimeterB、OscilloscopeC、Cable testerD、Power supply tester

第1题：

If a technician suspects that the voltage being delivered to a desktop computer’s power supply is insufficient or incorrect, which device should be used to determine the correct voltage?（）

• A、A power supply tester
• B、A multimeter
• C、A loopback adapter
• D、A cable tester

第2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？ （）

• A、Move the power supply voltage switch to 220 volts.
• B、Add an additional fan to help cool the computer.
• C、Replace the cable that attaches the power supply to the motherboard.
• D、Replace the power supply.

第3题：

A user is reporting that their computer is making strange noises and randomly powers off. Which of the following tools would MOST likely be used to troubleshoot this problem?（）

• A、POST diagnostic card
• B、Power supply tester
• C、Loop back plug
• D、Cable tester

第4题：

A military member has just returned to the United States from Europe and reports their personaldesktop computer does not work. Which of the following is the MOST logical solution to thisproblem?（）

• A、The computer is unable to work in the US because of EU licensing arrangements
• B、The power supply needs to be replaced with one rated for 110 watts
• C、The power supply needs a power inverter to handle the change in cycles
• D、The power supply voltage needs to be switched to 110 from 220

第5题：

Which of the following will allow Karen, a technician, to determine if the correct voltages are reaching the computer components? (Select TWO).（）

• A、Power supply tester
• B、Cable tester
• C、Loopback plugs
• D、Multimeter
• E、Butt set

第6题：

A technician is installing a new power supply into a computer. One of the power supply connectors that the technician needs to connect to the motherboard is square and contains 4-pins. This connector is known as which of the following?（）

• A、SATA
• B、FDD
• C、IDE
• D、ATX

第7题：

A computer is failing to boot. Which of the following tools would be used FIRST in troubleshooting? （）

• A、Time Domain Reflectometer (TDR)
• B、Oscilloscope
• C、Power supply tester
• D、Spectrum analyzer

第8题：

A technician arrives in Germany and discovers that when their PC is plugged into the outlet, nopower is received. Which of the following actions should the technician take to get the PC tooperate?（）

• A、Change the BIOS settings to the local time
• B、Adjust the voltage selector switch
• C、Attach a 220 volt power strip from the current region to the PC
• D、Attach a 120 volt battery backup power supply to the PC

第9题：

第10题：

第11题：

第12题：

第13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

第14题：

Which of the following tools is BEST used to measure voltage and amperage from a power source?（）

• A、Loopback Plug
• B、Multimeter
• C、Power Supply Tester
• D、Extension Magnet

第15题：

Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional？（）

• A、Dust
• B、Power Surge
• C、Excessive humidity
• D、High temperatures

第16题：

The technician has replaced a power supply with an identical power supply, and now the high end graphics card is not working. Which of the following should the technician check?（）

• A、The memory
• B、The CMOS battery
• C、The PCIe power jack
• D、The processor for chip creep

第17题：

A technician has just installed a new power supply into a desktop computer and now the computer will not turn on. Which of the following is the MOST likely cause?（）

• A、The voltage selector switch on the power supply is set incorrectly.
• B、The 3.3v power line is connected to the wrong input on the motherboard.
• C、The new power supply voltage rating is too high.
• D、The 12v power cord is installed incorrectly.

第18题：

An administrator has a malfunctioning uninterruptible power supply (UPS). Which of the following is the MOST likely cause of the problem?（）

• A、Battery needs to be replaced
• B、Light switch is turned off
• C、Smart cable is disconnected
• D、UPS needs a firmware update

第19题：

Which of the following factors is the MOST likely cause of a power supply fan failure？（）

• A、 Extreme temperature variances
• B、 Extreme humidity variances
• C、 Power stability fluctuations
• D、 Excessive dust accumulation

第20题：

Which of the following should a technician MOST likely use to test a RS-232 port?（）

• A、Loopback adapter
• B、Power supply tester
• C、The ping command
• D、Multimeter

第21题：

第22题：

第23题：