单项选择题
A.Scandisk
B.Defrag
C.Indexing
D.Chkdsk
单项选择题 Which of the following BEST describes the purpose of user account control (UAC) in WindowsVista?()
单项选择题 A Denial of Service (DoS) attack is:()
单项选择题 A dry cleaner is having issues with their computer overheating. Which of the following preventive maintenance techniques would be the BEST short-term resolution to the problem?()