单项选择题

A computer boots up with the error "CMOS Checksum Failure." Which of the following components needs to be replaced？（）

A.power supply
B.CMOS chip
C.motherboard
D.CMOS battery

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单项选择题

An A+ Certified Technician MUST do an install on a Windows XP system from the distribution CD. However， the system does not boot from this CD. What is the MOST likely cause of this problem？（）

A.The CD is defective.
B.The CD is not bootable.
C.The CD-ROM drive is defective.
D.The Boot Sequence is not set in the BIOS to boot first from the CD

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

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