單項(xiàng)選擇題

A workstation no longer has network connectivity. Upon visual inspection, all connectors andsettings seem to be properly configured. Which of the following tools should the technician use to troubleshoot this issue? （）

A. PSU tester
B. Loopback plug
C. Cable tester
D. Multimeter

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多項(xiàng)選擇題

Which of the following will allow Karen, a technician, to determine if the correct voltages are reaching the computer components? (Select TWO).（）

A. Power supply tester
B. Cable tester
C. Loopback plugs
D. Multimeter
E. Butt set

單項(xiàng)選擇題

A technician has replaced a video card with another manufacturer’s video card. The driverinstallation does not complete. Which of the following steps should the technician take FIRST?（）

A. Roll back the driver.
B. Install the original video card and reboot.
C. Delete the monitor.
D. Remove the video card and reboot.