單項選擇題

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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單項選擇題

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

單項選擇題

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