单项选择题
A.toner B.laser beam C.developer D.ribbon
Whenexperiencingvideoproblems，whichofthefollowingshould...
单项选择题When experiencing video problems， which of the following should be performed FIRST to ensure that the monitor is not causing the problem？ （）
A.Check for the latest video drivers. B.Install a known-good video adapter. C.Attach the monitor to a known-good computer. D.Replace the monitor.
WhenrebootingacomputerrunningWindowsXPHome，atechniciano...
单项选择题When rebooting a computer running Windows XP Home， a technician observes an error message stating，“illegal I/O port address.” Which of the following can be done to resolve this error？（）
A.Upgrade the motherboard BIOS. B.Upgrade to Windows XP Professional. C.Upgrade the CPU on the motherboard. D.Return to Windows 2000 Professional.
Whichofthefollowingwouldbeanexampleofabiometricdevice？（...
单项选择题Which of the following would be an example of a biometric device？（）
A.USB security key B.smart card reader C.thumb print reader D.encryption password
