Which of the following RAID configurations takes advantage of mirroring？（）

多项选择题Whichofthefollowingshouldbeconsideredwhenupgradingmemory？（）

A.speed of memory
B.memory slot color
C.type of memory
D.CPU speed
E.BIOS version

单项选择题Auserreportsthatwhentryingtoprintadocumentnothingcomesoutoftheprinterandstatesthattheonlyprinterintheprinterdialogboxis’MicrosoftOfficeDocumentImageWriter.’Thetechnicianshouldunderstandthattheproblemisthattheprinter：（）

A.has not been installed on the user’s computer.
B.is not turned on.
C.driver is corrupt.
D.cable is unplugged.

单项选择题Auserreportsthatthedisplayonthelaptopappearsblurred.WhichofthefollowingisMOSTlikelythecause？（）

A.The LCD is not running in its native resolution.
B.LCD monitors do not appear blurred.
C.The drivers are improperly installed.
D.More video memory needs to be allocated.

单项选择题WhichofthefollowingwouldbethewaytopreventtheNumLockLEDfrombeingturnedonautomaticallywhenalaptopisbooted？（）

A.Hold the function Num Lock key down during POST.
B.Go into the Windows Keyboard applet and deselect the ’Num Lock on boot’ option.
C.Create a Windows profile to disable the feature during power-on self test （POST）.
D.Turn the feature off in the BIOS.

单项选择题Whichofthefollowingprintertypesusesthinprintpinstotransferinkfromafiberorribbon？（）

A.impact
B.laser
C.solid ink
D.ink jet