单选题A user complains that a computer monitor is experiencing a jitter. Replacing the monitor and video card does not fix the problem. Which of the following could be causing the problem？（）A ESD（electrostatic discharge）B motherboardC RAMDACD EMI（electromagn

第1题：

A user would like to use an external monitor with their laptop, but when the monitor is plugged in and connected to the laptop, the screen does not display on the monitor. Which of the following is the BEST way to display an image on both the monitor and the laptop?（）

• A、Change resolution on laptop
• B、Toggle FN key and external monitor key
• C、Try a different monitor type
• D、Try using a different monitor cable

第2题：

Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（）

• A、 istat
• B、 topas
• C、 vmstat
• D、 filemon

第3题：

第4题：

A laptop will not output to a connected projector. Which of the following steps should a technician take FIRST?（）

• A、Press the appropriate function + monitor key.
• B、Adjust the BIOS settings for external display.
• C、Replace the video card on the laptop.
• D、Update video drivers for the video card.

第5题：

A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which ofthe following is the MOST likely cause?（）

• A、The display is defective.
• B、The video card needs to be flashed.
• C、The internal adapter has not been disabled.
• D、The new video card is defective.

第6题：

When experiencing video problems， which of the following should be performed FIRST to ensure that the monitor is not causing the problem？ （）

• A、Check for the latest video drivers.
• B、Install a known-good video adapter.
• C、Attach the monitor to a known-good computer.
• D、Replace the monitor.

第7题：

A user complains that a computer monitor is experiencing a jitter. Replacing the monitor and video card does not fix the problem. Which of the following could be causing the problem？（）

• A、ESD（electrostatic discharge）
• B、motherboard
• C、RAMDAC
• D、EMI（electromagnetic interference）

第8题：

Which of the following could be disabled to improve performance and response, in Windows Vista,on a computer with an older video card?（）

• A、Desktop Icons
• B、Aero
• C、Task Manager
• D、UAC

第9题：

A customer reports to Karen, a technician, that he is experiencing problems with the display after his computer is fully booted but reports seeing the BIOS splash screen during boot. Which of the following would MOST likely be the cause?（）

• A、The video cable is incorrectly attached.
• B、A corrupted or incorrect video driver is installed.
• C、An incorrect video card is installed in the computer.
• D、The video card is defective and needs to be replaced.

第10题：

A technician is troubleshooting a monitor displaying a blank screen and the power indicator light ison. Which of the following should the technician do next?（）

• A、Test the computer with a known-good monitor.
• B、Check if the monitor is still covered under the manufacturer’s warranty.
• C、Replace the monitor’s power cord with a known-good power cord.
• D、Swap out the computer’s video card.