问题：单选题What is the FIRST step in diagnosing a completely dead computer that was working fine the day before？（）A remove all peripherals and reinstall them one at a timeB replace the CMOS batteryC check the AC power cord and verify the power sourceD back up the entire hard drive
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问题：单选题Which of the following is NOT a phase of the troubleshooting process？（）A confirm the repairB define the problemC document the resultsD simplify the problem
问题：单选题Which cleaning product should be used for the inside of a computer？（）A glass cleanerB a simple ammonia and water solution followed by an antistatic solutionC a bleach solution followed by waterD compressed air
问题：单选题A user complains that a computer monitor is experiencing a jitter. Replacing the monitor and video card does not fix the problem. Which of the following could be causing the problem？（）A ESD（electrostatic discharge）B motherboardC RAMDACD EMI（electromagnetic interference）
问题：单选题A defective CD-ROM drive is replaced with a new CD-ROM drive. The new CD-ROM drive is able to read any CD that it accesses， but music CDs do not play music. What is the MOST likely cause of this problem？（）A The audio cable is not connected to the drive.B The ribbon cable is not connected.C The power cable is not connected.D The CD-ROM drivers are not installed.
问题：单选题A client asks a technician to add a DVD+R burner to a computer system. The technician does this and successfully tests the drive. Three weeks later， the client calls and says that the burner is no longer working. The technician learns that the drive reads CDs and DVDs， but will no longer burn DVDs. When arriving on site， what is the FIRST action that the technician should take？（）A check for a faulty IDE cableB be sure that the DVD+R is formatted before using itC check for incompatible mediaD re-install the DVD burning software
问题：单选题A computer boots up with the error "CMOS Checksum Failure." Which of the following components needs to be replaced？（）A power supplyB CMOS chipC motherboardD CMOS battery
问题：单选题A user reports that while printing a large document，the local printer fails to print and the document cannot be deleted from the queue. What is the MOST likely cause of the problem？（）A The printer cable is not bi-directional.B The user does not have full printer administration rights.C The computer cannot spool and send the print job fast enough.D The print job is too big for the amount of available memory.
问题：多选题A Laser printer keeps getting a "Memory Overflow" error when printing a particular document. Which three of the following are possible fixes？（）Areset the printer cableBreplace the toner cartridgeCdecrease the print resolutionDadd more RAM to the printerEreduce the RET（Resolution Enhancement Technology）
问题：单选题Which test checks the transmitter and receiver of a local modem？（）A data parityB analog loop backC local digital loop backD remote digital loop back
问题：单选题When replacing a power supply， what MUST the technician observe？（）A voltageB currentC wattageD resistance
问题：单选题What is the MOST significant difference between EDO RAM and fast page mode DRAM？（）A EDO RAM is faster.B EDO RAM is slower.C EDO RAM is smaller.D EDO RAM is cheaper.
