单选题After booting up a new computer， a technician observes that the USB ports are not working with any USB devices. Which of the following should be done FIRST？（）A Check the computer to verify that the jumper settings for USB are correct.B Connect the USB 

第1题：

A laptop has a non-functioning keyboard. After the keyboard was replaced with a known good one, the technician finds that the keyboard still is not functioning. Which of the following steps should the technician take NEXT?（）

• A、Replace the motherboard.
• B、Check all connections.
• C、Replace the USB controller.
• D、Check the PS/2 connector.

第2题：

A technician supports users in a client/server environment. A user suddenly cannot access any network resources. The user tried to logon to a known working computer but was unsuccessful.Which of the following should the technician check FIRST？（）

• A、Check if the user account is locked
• B、Check group policy
• C、Check the drive for fragmentation
• D、Check NTFS permissions

第3题：

第4题：

After setting up a new computer, a user states that the mouse and keyboard will not work. Whichof the following is the MOST likely reason?（）

• A、The network cable is disconnected
• B、The PS/2 connectors are switched
• C、The USB connectors are switched
• D、The hard drive is unplugged

第5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

第6题：

A user wants to install an external hard drive using the fastest connection available. Which of the following should the technician recommend?（）

• A、USB 1.1
• B、eSATA
• C、USB 2.0
• D、IEEE 1394

第7题：

You are the administrator of your company’s network. You install Windows 2000 Professional on 10 computers in the graphics department. The 10 computers have built in USB controllers. You physically install a USB tablet pointing device on each computer. You install the 32-bit manufacturer tablets software on each computer. A tablet icon appears in the central panel to configure the device but the device does not work. You want the USB tablets to work on 10 computers. What should you do?（）

• A、Enable the USB ports in the BIOS and reinstall the USB tablet device drivers.
• B、Enable the USB root hub controller and reinstall the USB tablet device drivers.
• C、Disable the USB error detection for the USB root hub controller and enable the USB tablet device in the hardware profile.
• D、Reinstall the USB device drivers and disable the USB error detection.

第8题：

A technician plugs a USB device into the front panel of a desktop computer and nothing happens.The technician knows that plug-n-play is enabled. Which of the following BEST describes a possible cause to this issue?（）

• A、The technician plugged a USB 2.0 device into a USB 1.1 port.
• B、The technician needs to reboot the computer for the device to work.
• C、The technician plugged a USB 1.1 device into a USB 2.0 port.
• D、The front panel connectors are not plugged into the motherboard.

第9题：

A computer’s onboard LPT1 port fails. Which of the following I/O cards should be installed to fix this problem?（）

• A、Serial
• B、Parallel
• C、FireWire
• D、USB

第10题：

A user reports that their touchpad no longer works on their laptop. Which of the following is the FIRST troubleshooting step?（）

• A、Plug in USB keyboard
• B、Check for a disable switch
• C、Contact the laptop manufacturer
• D、Plug in a USB mouse