单项选择题
A technician is setting up a new inkjet printer and notices that the images appear hazy. Which of the following should the technician perform FIRST to resolve the issue?（）
A. Refill the cartridges
B. Replace the toner
C. Replace the network cable
D. Calibrate the inkjet printer
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单项选择题
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
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单项选择题
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
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A technician needs to change an existing drive formatted in FAT32 to a NTFS format, whileretaining the data. Which of the following is the BEST way to make this change?（）
A. Use Device Manager to disable the drive, then format it as NTFS.
B. Use Disk Management to change the format type.
C. Use Task Manager to start the CHKNTFS command.
D. Run the CONVERT command from the command prompt
