单项选择题

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. Multimeter
B. Oscilloscope
C. Cable tester
D. Power supply tester

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单项选择题

A home user wants to setup a wireless network. Which of the following would be the MOST important consideration?（）

A. Operating system type of the connected PCs
B. Location of the wireless router
C. Number of PCs that will access the network
D. Number of available Ethernet ports on the router

单项选择题

Which of the following does an out-of-memory error indicate on a printer?（）

A. A faulty memory module in the printer.
B. A postscript print job has been sent to the printer.
C. A large print job has been sent to the printer.
D. The printer firmware needs to be updated.

单项选择题

Which of the following should the technician do FIRST when removing a paper jam?（）

A. Open all the doors in the printer.
B. Clear the print queue.
C. Turn the printer off.
D. Take the printer offline.