During boot up， a laptop screen displays vertical colored lines and then the LCD screen goes blank. There are no display problems when connected to an external monitor. Which of the following actions should be taken to resolve the problem？ （）

单项选择题Whenconnectingalaserprintertoanetworkforthefirsttime，atechnicianshouldFIRST：（）

A.configure the network settings on the printer.
B.ensure the cable is set to TCP/IP.
C.enable the printer in the BIOS.
D.configure the printer as bi-directional in Windows.

单项选择题AworkorderstatesthatacustomerusedWindowsupdatesandafterrebootingthecomputer，thevideodriverwascorruptedandthecomputerwasinsafemode.WhichofthefollowingwouldbetheBESTactiontotake？（）

A.Download and install the correct video driver from the manufacturer’s web site.
B.Remove the video driver and reboot the computer.
C.Use the Driver Roll Back feature in Device Manager.
D.Go back to Windows update and specify the correct video driver.

单项选择题InwhichofthefollowinglocationswouldatechniciansettheLBAmodeforaharddrive？（）

A.Jumper Settings
B.Disk Manager
C.Device Manager
D.System BIOS

单项选择题Wheninstallinganinkjetprinterforthefirsttime，whichofthefollowingshouldbedoneFIRST？（）

A.Print a test page from the Printer icon under the printers tab.
B.Select the new printer as the default printer.
C.Run the printhead alignment within the Tools folder of the printer.
D.Ensure that the printer is set for bi-directional printing.

多项选择题Whenacomputerdoesnotrecognizeaninternalmodem，atechnicianshoulddeterminewhether：（）

A.the modem is seated properly.
B.the number being dialed is valid.
C.there are resource conflicts.
D.there is power to the modem.
E.the modem speaker is enabled.