单项选择题

A.USB security keyB.smart card readerC.thumb print read……

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

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热门试题

单项选择题ToforceausertouseCtrl-Alt-Deletetologintothecomputer，atechniciancangotoControlPanelthen：（）

A.Accessibility options.
B.Security Center.
C.User accounts and the Advanced tab.
D.Windows Firewall.

单项选择题AtechnicianislockedoutofadesktopsBIOSbecauseofaforgottenpassword.Whichofthefollowingisamethodofremovingthepassword？（）

A.Replace the power supply unit.
B.Reseat the systems memory.
C.Reset the proper jumper.
D.Re-install the operating system.

单项选择题Whichofthefollowingistherecommendedmaintenanceforalaserprinter？（）

A.Clean all fan filters； wipe down the paper path and re-adjust the corona wire.
B.Clean all pickup rollers； re-adjust the corona wire and replace the fuser assembly.
C.Clean all pickup rollers； replace the fuser assembly and clean all fan filters.
D.Clean all pickup rollers； wipe down the paper path and clean all fan filters.

单项选择题Alaserprinterissentforrepairandtheworkorderindicatesthatthereisanimageprintingproblem.WhichofthefollowingshouldatechniciandoFIRSTtoconfirmthisproblem？（）

A.Run the calibration feature on the laser printer.
B.Run a self-test image page from the printer.
C.Clean the corona wire and return printer.
D.Print a test page from a computer.

单项选择题WhichofthefollowingmaycauseaprintertonotprintcorrectlyafterupdatingfromWindows98toWindowsXP？（）

A.Incorrect printer driver.
B.Printer needs calibration.
C.Dirty printer head.
D.Font settings on the printer.