单项选择题

Which of the following commands would be used to verify and troubleshoot DNS settings of aparticular host on a Windows computer?（）

A.TRACERT
B.NSLOOKUP
C.CHKDSK
D.XCOPY

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单项选择题

Several users report that they are unable to print to a new printer recently installed. The technician is unable to ping the printer. Which of the following is the MOST likely cause?（）

A. No IP address on the printer
B. Paper jam in the paper feed tray
C. Improper DNS settings on the printer
D. Broken LCD screen on the printer

单项选择题

A technician plugs a USB device into the front panel of a desktop computer and nothing happens.The technician knows that plug-n-play is enabled. Which of the following BEST describes a possible cause to this issue?（）

A. The technician plugged a USB 2.0 device into a USB 1.1 port.
B. The technician needs to reboot the computer for the device to work.
C. The technician plugged a USB 1.1 device into a USB 2.0 port.
D. The front panel connectors are not plugged into the motherboard.

单项选择题

Which of the following commands will be run at a command prompt to determine which WindowsOS is running on the computer?（）

A.VER
B.Device Manager
C.VERIFY
D.SET