单项选择题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.


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1.单项选择题A legacy PCI IDE controller card does not recognize a new IDE HDD. Which of the followingmaintenance techniques would BEST resolve this situation?()

A. Perform a BIOS upgrade
B. Update the IDE controller's firmware
C. Format the HDD on another PC
D. Update the IDE controller's driver

2.单项选择题In order to ensure there is proper airflow in a new computer, which of the following should be performed?()

A. Install a passive hard drive cooler.
B. Unplug the redundant power cables from the motherboard.
C. Install rounded IDE cables.
D. Drill holes in the PC's case to create more airflow

3.单项选择题A customer purchased a new PC with Windows XP but wants to run a program designed forWindows 98. Which of the following will allow this program to run under Windows XP?()

A. Change the file permissions for the executable file.
B. Use the convert utility to change the attributes of the executable file.
C. Make sure that Windows XP has FAT32 file system.
D. Run the executable file under compatibility mode.

4.单项选择题

A technician installed a new video card on a motherboard which has onboard video. When the
monitor was plugged into the new card and the power was turned on, a no signal message
appeared on the monitor.
Which of the following is MOST likely the issue?()

A. In the BIOS, the onboard video adapter must be disabled.
B. The video resolution is set too high.
C. The LCD panel is defective.
D. The drivers for the new video card must be installed before installing the card.

5.单项选择题Which of the following utilities can display drivers installed on a local Windows XP machine?()

A. msinfo32.exe
B. fsutil.exe
C. msiexec.exe
D. chkntfs.exe

6.单项选择题Which of the following is the purpose of the sigverif.exe utility?()

A. Encrypt a file for secured electronic delivery.
B. Confirm the digital certificate to check file integrity.
C. Remove non-certified drivers from the driver cache.
D. Choose the level of driver certification to use when installing device drivers.

7.单项选择题

A technician is performing a memory upgrade by installing an additional 1GB stick of DDR RAM
into a system. When the installation is complete, the computer shows 2GB of RAM at POST;
however, it now indicates a lower speed setting for the memory.
Which of the following is the MOST likely cause?()

A. The newly installed RAM has a lower clock speed than the existing RAM.
B. The CPU is not configured to work with the additional RAM.
C. The system is incompatible with the new RAM.
D. The new RAM is of lower quality, and not dependable at higher speeds.

8.单项选择题A user reports that they are unable to open any audio files. Yesterday, the user uninstalled third party music software. Which of the following is the MOST likely cause of the user’s error?()

A. The file associations were not returned after the software was uninstalled.
B. The user is not opening the files correctly.
C. The uninstalled software has corrupted all the audio files on the computer.
D. The sound card is not properly configured.

9.单项选择题

A technician is installing a memory upgrade for a remote user. The technician notes that the machine is not reporting the correct amount of memory that was installed during the POST step.
Which of the following actions should the technician perform FIRST?()

A. Replace the newly installed memory modules with another known-working unit.
B. Remove and reseat the memory, and recheck the memory reported.
C. Leave the configuration intact, and check cabling to ensure nothing was loose during the installation.
D. Perform a BIOS upgrade on the machine.

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A customer reports that their newly purchased Windows Vista Home Premium notebook is unable tosee other computers in their home office. Which of the following is the MOST likely cause? ()

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A client has been unable to fix corruption of system files and does not have a backup or an Automated System Recovery (ASR) disk. Which of the following is the BEST action to take next? ()

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Which of the following could cause an Inaccessible boot drive error during the boot process? ()

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A customer reports they are unable to connect to any computers outside of the office and they areunable to connect to the Internet. When the technician runs ipconfig, the customer gets the followingoutput: IP address169.254.2.4Subnet Mask.255.255.0.0Default Gateway.Which of the following could be causing the issue?()

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A technician has just installed an upgraded graphics card. The computers power turns off before itfinishes booting. Which of the following is the cause of the problem? ()

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After moving files from one folder to another, the technician cannot access them. Which of the following MUST the technician do to regain access to these files?()

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A Windows OS has failed to load after a successful power on self test. Which of the following steps will help troubleshoot the problem?()

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