单项选择题

Which of the following is NOT a phase of the troubleshooting process？（）

A.confirm the repair
B.define the problem
C.document the results
D.simplify the problem

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单项选择题

What is the FIRST and most important step in system troubleshooting？（）

A.back up the system data
B.gather information about the problem
C.try rebooting the system to see if that fixes the problem
D.check the System Error Log or Event Log

单项选择题

A defective CD-ROM drive is replaced with a new CD-ROM drive. The new CD-ROM drive is able to read any CD that it accesses， but music CDs do not play music. What is the MOST likely cause of this problem？（）

A.The audio cable is not connected to the drive.
B.The ribbon cable is not connected.
C.The power cable is not connected.
D.The CD-ROM drivers are not installed.