單項(xiàng)選擇題

A technician has a user that consistently picks up viruses and malware no matter what kind ofsoftware is installed to prevent infection. Which of the following should be a cost-effective logical step in preventing future infections?（）

A. Place the user behind a high end NIPS device.
B. Migrate the user to a Virtual Machine environment.
C. Educate the user on browsing habits.
D. Install multiple antivirus programs on the machine to decrease the chances for infection.

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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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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
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C. Improper DNS settings on the printer
D. Broken LCD screen on the printer