单项选择题

A computer is failing to boot. Which of the following tools would be used FIRST in troubleshooting? （）

A. Time Domain Reflectometer (TDR)
B. Oscilloscope
C. Power supply tester
D. Spectrum analyzer

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单项选择题

A user works daily with video production and needs portable storage which will allow them to transport their work back and forth from home. Taking the users storage and bandwidth requirements into consideration, which of the following would BEST suit the users needs?（）

A. An external hard drive connected via eSATA
B. An external hard drive connected via USB 2.0
C. An external hard drive connected via serial
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单项选择题

A Windows XP system locks up after the GUI starts to load. The system will start in Safe Mode. TheEvent Viewer reports that a driver failed to load. Which of the following methods would help diagnose the problem? （）

A. Enable boot logging. In Safe Mode, read the ntbtlog.txt file.
B. In Safe Mode, run the sigverif utility.
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D. In Safe Mode, run the driverquery utility.

单项选择题

A customer reports that their newly purchased Windows Vista Home Premium notebook is unable tosee other computers in their home office. Which of the following is the MOST likely cause? （）

A. The Windows Defender service is turned on.
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C. The Network Location Type is Private.
D. The Network Location Type is Public.