单项选择题

You have a computer with a USB keyboard that is running Windows 2000 Professional. You install a USB scanner on this system. The system asks for the driver and you install them. After you restart your computer， you notice that the keyboard doesn’t work anymore. What should you do in order to make both， the keyboard and the scanner work？（）

A.Update the scanner drivers using certified drivers
B.Enable the USB port in the computers BIOS
C.USB keyboards DO NOT exist
D.Enable the USB hub controller
E.Reinstall the USB device driver and disable the USB error detection

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单项选择题

You are the network administrator for your company. A user reports that the USB ports on his Windows 2000 Professional portable computer function only when the portable computer is in its docked position at the office. He asks you to configure the computer so that the USB port works when the portable computer is docked and when it is undocked and running on battery power. You verify that the portable computer supports ACPI power management. What should you do？（）

A.Modify the portable computer’s power management settings to ensure the USB ports are not shut down when the computer is running on battery power.
B.Modify the portable computer’s BIOS settings to disable ACPI when the computer is running on battery power.
C.Modify the portable computer’s undocked hardware profile, and enable the USB root hub.
D.Disable the BIOS power management features in the portable computer’s BIOS settings.
E.Obtain external power supplies for the user’s USB devices. Ensure that these power supplies are connected when the portable computer is undocked.
F.Undock the portable computer, and reinstall the drivers for the USB port.

单项选择题

You install a new USB scanner on a Windows 2000 Professional computer. Two weeks later， the user of the computer informs you that when he scans images with the scanner， the colors do not display correctly. When he prints the scanned images， the colors print correctly. You need to ensure that the scanned images display the correct colors. What should you do？（）

A.In scanners and cameras in control panel， remove the color management profile.
B.In the display properties in control panel， set the Windows color scheme to Windows standard.
C.In the advanced properties of the display properties in control panel， remove all color management profiles.
D.In the display properties in control panel， increase the colors setting.

单项选择题

You install 10 USB tablets on 10 Windows 2000 Professional computers with built-in USB controllers. After installing the tablet software， you notice that the tablets cannot communicate with the computers. What must you do to recover from this problem？（）

A.Enable the USB root hub controller and reinstall the USB tablet device drivers.
B.Disable USB error detection for the USB root hub controller and enable the USB tablet within the Device Manager.
C.Reinstall the USB device drivers and disable USB error detection.
D.Enable the USB ports in the BIOS and reinstall the USB tablet device drivers.