单项选择题
Which of the following steps in the troubleshooting and repair process is MOST effectivereduce redundant effort？ （）
A.Discuss the problem with the user and identify any recent changes. B.Identify the root cause of the failure. C.Verify the problem resolution. D.Document activities and outcomes of repair steps.
单项选择题 WhichofthefollowingkeysareusedtoaccessadvancedWindowsstartupoptionswhileacomputerisbooting？（）
单项选择题 Theutilitythatchecksthefilesystemstructureis：（）
单项选择题 Theerror’invalidbootdisk’means：（）
